Exhibit 2.1


                                                                         









                           AGREEMENT AND PLAN OF MERGER


                                     BETWEEN


                              CUC INTERNATIONAL INC.

                                       AND

                                 HFS INCORPORATED


                             DATED AS OF MAY 27, 1997


                                                                         





                                TABLE OF CONTENTS

                                                                    PAGE

                                    ARTICLE I

                                    THE MERGER

         SECTION 1.1.   The Merger..................................   2
         SECTION 1.2.   Closing.....................................   2
         SECTION 1.3.   Effective Time..............................   2
         SECTION 1.4.   Effects of the Merger.......................   2
         SECTION 1.5.   Certificate of Incorporation and By-laws....   2
         SECTION 1.6.   Boards, Committees and Officers.............   3
         SECTION 1.7.   Name of the Surviving Corporation...........   3
         SECTION 1.8.   Reservation of Right to Revise
                        Transaction.................................   4

                                    ARTICLE II
                    EFFECT OF THE MERGER ON THE CAPITAL STOCK
                         OF THE CONSTITUENT CORPORATIONS;
                             EXCHANGE OF CERTIFICATES

         SECTION 2.1.   Effect on Capital Stock.....................   4
         SECTION 2.2.   Exchange of Certificates....................   5
         SECTION 2.3.   Certain Adjustments.........................  10

                                   ARTICLE III
                          REPRESENTATIONS AND WARRANTIES

         SECTION 3.1.   Representations and Warranties of HFS.......  11
                        (a)  Organization, Standing and 
                             Corporate Power........................  11
                        (b)  Subsidiaries...........................  12
                        (c)  Capital Structure......................  12
                        (d)  Authority; Noncontravention............  14
                        (e)  SEC Documents; Undisclosed 
                             Liabilities............................  16
                        (f)  Information Supplied...................  16
                        (g)  Absence of Certain Changes or Events...  17
                        (h)  Compliance with Applicable Laws; 
                             Litigation.............................  18
                        (i)  Absence of Changes in Benefit Plans....  19
                        (j)  ERISA Compliance.......................  20
                        (k)  Taxes..................................  22
                        (l)  Voting Requirements....................  23
                        (m)  State Takeover Statutes................  23
                        (n)  Accounting Matters.....................  24








                                       -i-
                          PAGE





                        (o)  Brokers................................  24
                        (p)  Opinion of Financial Advisor...........  24
                        (q)  Ownership of CUC Common Stock..........  24
                        (r)  Intellectual Property..................  25
                        (s)  Certain Contracts......................  25
         SECTION 3.2.   Representations and Warranties of CUC.......  26
                        (a)  Organization, Standing and Corporate 
                             Power..................................  26
                        (b)  Subsidiaries...........................  27
                        (c)  Capital Structure......................  27
                        (d)  Authority; Noncontravention............  29
                        (e)  SEC Documents; Undisclosed 
                             Liabilities............................  30
                        (f)  Information Supplied...................  31
                        (g)  Absence of Certain Changes or Events...  32
                        (h)  Compliance with Applicable Laws; 
                             Litigation.............................  33
                        (i)  Absence of Changes in Benefit Plans....  34
                        (j)  ERISA Compliance.......................  34
                        (k)  Taxes..................................  37
                        (l)  Voting Requirements....................  38
                        (m)  State Takeover Statutes................  38
                        (n)  Accounting Matters.....................  39
                        (o)  Brokers................................  39
                        (p)  Opinion of Financial Advisor...........  39
                        (q)  Ownership of HFS Common Stock..........  39
                        (r)  Intellectual Property..................  40
                        (s)  Certain Contracts......................  40

                                    ARTICLE IV

                    COVENANTS RELATING TO CONDUCT OF BUSINESS

         SECTION 4.1.   Conduct of Business........................   41
         SECTION 4.2.   No Solicitation by HFS.....................   48
         SECTION 4.3.   No Solicitation by CUC.....................   51

                                    ARTICLE V

                              ADDITIONAL AGREEMENTS

         SECTION 5.1.   Preparation of the Form S-4 and the Joint 
                        Proxy Statement; Stockholders Meetings.....   54
         SECTION 5.2.   Letters of HFS's Accountants...............   56
         SECTION 5.3.   Letters of CUC's Accountants...............   56
         SECTION 5.4.   Access to Information; Confidentiality.....   57
         SECTION 5.5.   Best Efforts...............................   57









                                       -ii-
                         PAGE





         SECTION 5.6.   Stock Options..............................   58
         SECTION 5.7.   HFS Stock Plans and Certain
                        Employee Matters...........................   60
         SECTION 5.8.   Indemnification, Exculpation and
                        Insurance..................................   61
         SECTION 5.9.   Fees and Expenses..........................   62
         SECTION 5.10.  Public Announcements.......................   63
         SECTION 5.11.  Affiliates.................................   64
         SECTION 5.12.  NYSE Listing...............................   64
         SECTION 5.13.  Stockholder Litigation.....................   65
         SECTION 5.14.  Tax Treatment..............................   65
         SECTION 5.15.  Pooling of Interests.......................   65
         SECTION 5.16.  Standstill Agreements; Confidentiality 
                        Agreement..................................   65
         SECTION 5.17.  Company Officers; Employment Contracts; 
                        Equity Awards..............................   65
         SECTION 5.18.  Post-Merger Operations.....................   67
         SECTION 5.19.  Conveyance Taxes...........................   67
         SECTION 5.20.  HFS Convertible Notes......................   67
         SECTION 5.21.  Transition Planning........................   68

                                    ARTICLE VI
                               CONDITIONS PRECEDENT

         SECTION 6.1.   Conditions to Each Party's Obligation to
                        Effect the Merger..........................   68
         SECTION 6.2.   Conditions to Obligations of CUC...........   70
         SECTION 6.3.   Conditions to Obligations of HFS...........   71
         SECTION 6.4.   Frustration of Closing
                        Conditions.................................   73

                                   ARTICLE VII

                        TERMINATION, AMENDMENT AND WAIVER

         SECTION 7.1.   Termination................................   73
         SECTION 7.2.   Effect of Termination......................   75
         SECTION 7.3.   Amendment..................................   75
         SECTION 7.4.   Extension; Waiver..........................   75
         SECTION 7.5.   Procedure for Termination, Amendment, 
                        Extension or Waiver........................   75















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                                                                     PAGE



                                   ARTICLE VIII

                                GENERAL PROVISIONS

         SECTION 8.1.   Nonsurvival of Representations and
                        Warranties.................................   76
         SECTION 8.2.   Notices....................................   76
         SECTION 8.3.   Definitions................................   77
         SECTION 8.4.   Interpretation.............................   78
         SECTION 8.5.   Counterparts...............................   79
         SECTION 8.6.   Entire Agreement; No Third-Party
                        Beneficiaries..............................   79
         SECTION 8.7.   Governing Law..............................   79
         SECTION 8.8.   Assignment.................................   79
         SECTION 8.9.   Consent to Jurisdiction....................   79
         SECTION 8.10.  Headings...................................   80
         SECTION 8.11.  Severability...............................   80


         Exhibit A-1    Certificate of Incorporation of Surviving
                        Corporation
         Exhibit A-2    Amended and Restated By-laws of the Surviving
                        Corporation
         Exhibit B      Corporate Governance of Surviving Corporation
                        Following the Effective Time
         Exhibit C      Form of Affiliate Letter
         Exhibit D      CUC Tax Representations
         Exhibit E      HFS Tax Representations 




























                                       -iv-







                   AGREEMENT AND PLAN OF MERGER dated as of May 27,
         1997, between CUC INTERNATIONAL INC., a Delaware corporation
         ("CUC"), and HFS INCORPORATED, a Delaware corporation ("HFS").

                   WHEREAS, the respective Boards of Directors of CUC
         and HFS have each approved the merger of HFS with and into CUC
         (the "Merger"), upon the terms and subject to the conditions
         set forth in this Agreement, whereby each issued and
         outstanding share of common stock, par value $.01 per share, of
         HFS ("HFS Common Stock"), other than shares owned by CUC or
         HFS, will be converted into the right to receive the Merger
         Consideration (as defined in Section 1.8);

                   WHEREAS, the respective Boards of Directors of CUC
         and HFS have each determined that the Merger and the other
         transactions contemplated hereby are consistent with, and in
         furtherance of, their respective business strategies and goals
         and are in the best interests of their respective stockholders;

                   WHEREAS, CUC and HFS desire to make certain
         representations, warranties, covenants and agreements in
         connection with the Merger and also to prescribe various
         conditions to the Merger;

                   WHEREAS, for federal income tax purposes, it is
         intended that the Merger will qualify as a reorganization under
         the provisions of Section 368(a) of the Internal Revenue Code
         of 1986, as amended (the "Code"); and

                   WHEREAS, for financial accounting purposes, it is
         intended that the Merger will be accounted for as a pooling of
         interests transaction under United States generally accepted
         accounting principles ("GAAP").

                   NOW, THEREFORE, in consideration of the repre-
         sentations, warranties, covenants and agreements contained in
         this Agreement, the parties agree as follows:







                                    ARTICLE I

                                    THE MERGER

                   SECTION 1.1.  The Merger.  Upon the terms and subject
         to the conditions set forth in this Agreement, and in
         accordance with the Delaware General Corporation Law (the
         "DGCL"), HFS shall be merged with and into CUC at the Effective
         Time (as defined in Section 1.3).  Following the Effective
         Time, CUC shall be the surviving corporation (the "Surviving
         Corporation") and shall succeed to and assume all the rights
         and obligations of HFS in accordance with the DGCL.

                   SECTION 1.2.  Closing.  The closing of the Merger
         (the "Closing") will take place at 10:00 a.m. on a date to be
         specified by the parties (the "Closing Date"), which shall be
         no later than the second business day after satisfaction or
         waiver of the conditions set forth in Article VI, unless
         another time or date is agreed to by the parties hereto.  The
         Closing will be held at such location in the City of New York
         as is agreed to by the parties hereto.

                   SECTION 1.3.  Effective Time.  Subject to the
         provisions of this Agreement, as soon as practicable on the
         Closing Date, the parties shall cause the Merger to be
         consummated by filing a certificate of merger or other
         appropriate documents (in any such case, the "Certificate of
         Merger") executed in accordance with the relevant provisions of
         the DGCL and shall make all other filings or recordings
         required under the DGCL.  The Merger shall become effective at
         such time as the Certificate of Merger is duly filed with the
         Secretary of State of Delaware, or at such subsequent date or
         time as CUC and HFS shall agree and specify in the Certificate
         of Merger (the time the Merger becomes effective being
         hereinafter referred to as the "Effective Time").

                   SECTION 1.4.  Effects of the Merger.  The Merger
         shall have the effects set forth in Section 259 of the DGCL.

                   SECTION 1.5.  Certificate of Incorporation and By-
         laws of the Surviving Corporation.  The restated certificate of
         incorporation of CUC, as in effect immediately prior to the
         Effective Time, shall be amended as of









                                       -2-







         the Effective Time as described in Exhibit A-1 and, as so
         amended, such restated certificate of incorporation shall be
         the restated certificate of incorporation of the Surviving
         Corporation until thereafter changed or amended as provided
         therein or by applicable law (as so amended, the "Restated
         Certificate").  The by-laws of CUC, as in effect immediately
         prior to the Effective Time, shall be amended as of the
         Effective Time as described in Exhibit A-2 and, as so amended,
         such by-laws shall be the by-laws of the Surviving Corporation
         until thereafter changed or amended as provided therein or by
         applicable law (as so amended, the "Restated By-laws").  Such
         amendment and restatement of CUC's certificate of incorporation
         and by-laws are referred to herein as the "Certificate Amend-
         ment" and the "By-laws Amendment," respectively.

                   SECTION 1.6.  Boards, Committees and Officers.  Prior
         to the Effective Time, CUC shall adopt resolutions in the form
         attached hereto as part of Exhibit B, establishing the Board of
         CUC and committees thereof from and after the Effective Time.
         From and after the Effective Time, the members of the Board of
         Directors, the committees of the Board of Directors, the
         composition of such committees (including chairmen thereof) and
         the officers of the Surviving Corporation shall be as set forth
         on or designated in accordance with the Restated Certificate,
         the Restated By-laws and Exhibit B hereto until the earlier of
         the resignation or removal of any individual set forth on or
         designated in accordance with the Restated Certificate, the
         Restated By-laws and Exhibit B or until their respective
         successors are duly elected and qualified, as the case may be,
         or until as otherwise provided in the Restated Certificate, the
         Restated By-laws and Exhibit B.  If any officer set forth on or
         designated in accordance with Exhibit B ceases to be a full-
         time employee of either HFS or CUC at or before the Effective
         Time, CUC, in the case of any such employee of CUC on the date
         hereof or any such employee to be designated by CUC, or HFS, in
         the case of any such employee of HFS on the date hereof or any
         such employee to be designated by HFS, shall designate another
         person to serve in such person's stead.

                   SECTION 1.7.  Name of the Surviving Corporation.  The
         name of the Surviving Corporation shall be as agreed to
         between the parties prior to the Effective Time.










                                       -3-







                   SECTION 1.8.  Reservation of Right to Revise
         Transaction.  If each of HFS and CUC agree, the parties hereto
         may change the method of effecting the business combination
         between CUC and HFS, and each party shall cooperate in such
         efforts, including to provide for (a) a merger of a wholly
         owned subsidiary of CUC with and into HFS, or (b) mergers (to
         occur substantially simultaneously) of separate subsidiaries of
         a Delaware corporation jointly formed by CUC and HFS for such
         purpose into each of CUC and HFS; provided, however, that no
         such change shall (i) alter or change the amount or kind of
         consideration to be issued to holders of HFS Common Stock as
         provided for in this Agreement (the "Merger Consideration"),
         other than, in the case of clause (b) above, the issuer
         thereof, (ii) adversely affect the proposed accounting
         treatment for the Merger or the tax treatment to CUC, HFS or
         their respective stockholders as a result of receiving the
         Merger Consideration, or (iii) materially delay receipt of any
         approval referred to in Section 6.1(c) or the consummation of
         the transactions contemplated by this Agreement.


                                    ARTICLE II

                    EFFECT OF THE MERGER ON THE CAPITAL STOCK
                         OF THE CONSTITUENT CORPORATIONS;
                             EXCHANGE OF CERTIFICATES

                   SECTION 2.1.  Effect on Capital Stock.  As of the
         Effective Time, by virtue of the Merger and without any action
         on the part of the holder of any shares of HFS Common Stock:

                   (a)  Cancellation of Treasury Stock and CUC-Owned
         Stock.  Each share of HFS Common Stock that is owned by HFS or
         CUC shall automatically be cancelled and retired and shall
         cease to exist, and no consideration shall be delivered in
         exchange therefor.

                   (b)  Conversion of HFS Common Stock.  Subject to
         Section 2.2(e), each issued and outstanding share of HFS Common
         Stock (other than shares to be cancelled in accordance with
         Section 2.1(a)) shall be converted into the right to receive
         2.4031 (the "Exchange Ratio") validly issued, fully paid and
         nonassessable shares of common stock, par value $.01 per share
         ("CUC Common Stock"), of








                                       -4-







         CUC.  As of the Effective Time, all such shares of HFS Common
         Stock shall no longer be outstanding and shall automatically be
         cancelled and retired and shall cease to exist, and each holder
         of a certificate representing any such shares of HFS Common
         Stock shall cease to have any rights with respect thereto,
         except the right to receive the Merger Consideration and any
         cash in lieu of fractional shares of CUC Common Stock to be
         issued or paid in consideration therefor upon surrender of such
         certificate in accordance with Section 2.2, without interest.

                   SECTION 2.2.  Exchange of Certificates.  (a)
         Exchange Agent.  As of the Effective Time, CUC shall enter into
         an agreement with such bank or trust company as may be
         designated by CUC and reasonably satisfactory to HFS (the
         "Exchange Agent"), which shall provide that CUC shall deposit
         with the Exchange Agent as of the Effective Time, for the
         benefit of the holders of shares of HFS Common Stock, for
         exchange in accordance with this Article II, through the
         Exchange Agent, certificates representing the shares of CUC
         Common Stock (such shares of CUC Common Stock, together with
         any dividends or distributions with respect thereto with a
         record date after the Effective Time, any Excess Shares (as
         defined in Section 2.2(e)) and any cash (including cash
         proceeds from the sale of the Excess Shares) payable in lieu of
         any fractional shares of CUC Common Stock being hereinafter
         referred to as the "Exchange Fund") issuable pursuant to
         Section 2.1 in exchange for outstanding shares of HFS Common
         Stock.

                   (b)  Exchange Procedures.  As soon as reasonably
         practicable after the Effective Time, the Exchange Agent shall
         mail to each holder of record of a certificate or certificates
         which immediately prior to the Effective Time represented
         outstanding shares of HFS Common Stock (the "Certificates")
         whose shares were converted into the right to receive the
         Merger Consideration pursuant to Section 2.1, (i) a letter of
         transmittal (which shall specify that delivery shall be
         effected, and risk of loss and title to the Certificates shall
         pass, only upon delivery of the Certificates to the Exchange
         Agent and shall be in such form and have such other provisions
         as CUC and HFS may reasonably specify) and (ii) instructions
         for use in surrendering the Certificates in exchange for the
         Merger Consideration.  Upon surrender of a Certificate for
         cancellation to the Ex-








                                       -5-







         change Agent, together with such letter of transmittal, duly
         executed, and such other documents as may reasonably be
         required by the Exchange Agent, the holder of such Certificate
         shall be entitled to receive in exchange therefor a certificate
         representing that number of whole shares of CUC Common Stock
         which such holder has the right to receive pursuant to the
         provisions of this Article II, certain dividends or other
         distributions in accordance with Section 2.2(c) and cash in
         lieu of any fractional share of CUC Common Stock in accordance
         with Section 2.2(e), and the Certificate so surrendered shall
         forthwith be cancelled.  Notwithstanding anything to the
         contrary contained herein, no certificate representing CUC
         Common Stock or cash in lieu of a fractional share interest
         shall be delivered to a person who is an affiliate of HFS for
         purposes of qualifying the Merger for pooling of interests
         accounting treatment under Opinion 16 of the APB and applicable
         Securities and Exchange Commission ("SEC") rules and
         regulations, unless such person has executed and delivered an
         agreement in the form of Exhibit C hereto.  In the event of a
         surrender of a Certificate representing shares of HFS Common
         Stock which are not registered in the transfer records of HFS
         under the name of the person surrendering such Certificate, a
         certificate representing the proper number of shares of CUC
         Common Stock may be issued to a person other than the person in
         whose name the Certificate so surrendered is registered if such
         Certificate shall be properly endorsed or otherwise be in
         proper form for transfer and the person requesting such
         issuance shall pay any transfer or other taxes required by
         reason of the issuance of shares of CUC Common Stock to a
         person other than the registered holder of such Certificate or
         establish to the satisfaction of CUC that such tax has been
         paid or is not applicable.  Until surrendered as contemplated
         by this Section 2.2, each Certificate shall be deemed at any
         time after the Effective Time to represent only the right to
         receive upon such surrender the Merger Consideration which the
         holder thereof has the right to receive in respect of such
         Certificate pursuant to the provisions of this Article II,
         certain dividends or other distributions in accordance with
         Section 2.2(c) and cash in lieu of any fractional share of CUC
         Common Stock in accordance with Section 2.2(e).  No interest
         shall be paid or will accrue on any cash payable to holders of
         Certificates pursuant to the provisions of this Article II.










                                       -6-







                   (c)  Distributions with Respect to Unexchanged
         Shares.  No dividends or other distributions with respect to
         CUC Common Stock with a record date after the Effective Time
         shall be paid to the holder of any unsurrendered Certificate
         with respect to the shares of CUC Common Stock represented
         thereby, and, in the case of Certificates representing HFS
         Common Stock, no cash payment in lieu of fractional shares
         shall be paid to any such holder pursuant to Section 2.2(e),
         and all such dividends, other distributions and cash in lieu of
         fractional shares of CUC Common Stock shall be paid by CUC to
         the Exchange Agent and shall be included in the Exchange Fund,
         in each case until the surrender of such Certificate in
         accordance with this Article II.  Subject to the effect of
         applicable escheat or similar laws, following surrender of any
         such Certificate there shall be paid to the holder of the
         certificate representing whole shares of CUC Common Stock
         issued in exchange therefor, without interest, (i) at the time
         of such surrender, the amount of dividends or other
         distributions with a record date after the Effective Time
         theretofore paid with respect to such whole shares of CUC
         Common Stock and, in the case of Certificates representing HFS
         Common Stock, the amount of any cash payable in lieu of a
         fractional share of CUC Common Stock to which such holder is
         entitled pursuant to Section 2.2(e) and (ii) at the appropriate
         payment date, the amount of dividends or other distributions
         with a record date after the Effective Time and with a payment
         date subsequent to such surrender payable with respect to such
         whole shares of CUC Common Stock.

                   (d)  No Further Ownership Rights in HFS Common Stock.
         All shares of CUC Common Stock issued upon the surrender for
         exchange of Certificates in accordance with the terms of this
         Article II (including any cash paid pursuant to this Article
         II) shall be deemed to have been issued (and paid) in full
         satisfaction of all rights pertaining to the shares of HFS
         Common Stock, theretofore represented by such Certificates,
         subject, however, to the Surviving Corporation's obligation to
         pay any dividends or make any other distributions with a record
         date prior to the Effective Time which may have been declared
         or made by HFS on such shares of HFS Common Stock which remain
         unpaid at the Effective Time, and there shall be no further
         registration of transfers on the stock transfer books of the
         Surviving Corporation of the shares of HFS Common Stock which
         were outstanding immediately prior








                                       -7-







         to the Effective Time.  If, after the Effective Time,
         Certificates are presented to the Surviving Corporation or the
         Exchange Agent for any reason, they shall be cancelled and
         exchanged as provided in this Article II, except as otherwise
         provided by law.

                   (e)  No Fractional Shares.  (i)  No certificates or
         scrip representing fractional shares of CUC Common Stock shall
         be issued upon the surrender for exchange of Certificates, no
         dividend or distribution of CUC shall relate to such fractional
         share interests and such fractional share interests will not
         entitle the owner thereof to vote or to any rights of a
         stockholder of CUC.

                   (ii)  As promptly as practicable following the
         Effective Time, the Exchange Agent shall determine the excess
         of (A) the number of whole shares of CUC Common Stock delivered
         to the Exchange Agent by CUC pursuant to Section 2.2(a) over
         (B) the aggregate number of whole shares of CUC Common Stock to
         be distributed to former holders of HFS Common Stock pursuant
         to Section 2.2(b) (such excess being herein called the "Excess
         Shares").  Following the Effective Time, the Exchange Agent
         shall, on behalf of the former stockholders of HFS, sell the
         Excess Shares at then-prevailing prices on the New York Stock
         Exchange, Inc. ("NYSE"), all in the manner provided in Section
         2.2(e)(iii).

                   (iii)  The sale of the Excess Shares by the Exchange
         Agent shall be executed on the NYSE through one or more member
         firms of the NYSE and shall be executed in round lots to the
         extent practicable.  The Exchange Agent shall use reasonable
         efforts to complete the sale of the Excess Shares as promptly
         following the Effective Time as, in the Exchange Agent's sole
         judgment, is practicable consistent with obtaining the best
         execution of such sales in light of prevailing market
         conditions. Until the net proceeds of such sale or sales have
         been distributed to the holders of Certificates formerly
         representing HFS Common Stock, the Exchange Agent shall hold
         such proceeds in trust for such holders (the "Common Shares
         Trust").  The Surviving Corporation shall pay all commissions,
         transfer taxes and other out-of-pocket transaction costs,











                                       -8-







         including the expenses and compensation of the Exchange Agent
         incurred in connection with such sale of the Excess Shares.
         The Exchange Agent shall determine the portion of the Common
         Shares Trust to which each former holder of HFS Common Stock is
         entitled, if any, by multiplying the amount of the aggregate
         net proceeds comprising the Common Shares Trust by a fraction,
         the numerator of which is the amount of the fractional share
         interest to which such former holder of HFS Common Stock is
         entitled (after taking into account all shares of HFS Common
         Stock held at the Effective Time by such holder) and the
         denominator of which is the aggregate amount of fractional
         share interests to which all former holders of HFS Common Stock
         are entitled.

                   (iv)  Notwithstanding the provisions of Section
         2.2(e)(ii) and (iii), the Surviving Corporation may elect at
         its option, exercised prior to the Effective Time, in lieu of
         the issuance and sale of Excess Shares and the making of the
         payments hereinabove contemplated, to pay each former holder of
         HFS Common Stock an amount in cash equal to the product
         obtained by multiplying (A) the fractional share interest to
         which such former holder (after taking into account all shares
         of HFS Common Stock held at the Effective Time by such holder)
         would otherwise be entitled by (B) the average of the closing
         prices of the CUC Common Stock as reported on the NYSE Com-
         posite Transaction Tape (as reported in The Wall Street
         Journal, or, if not reported therein, any other authoritative
         source) during the ten trading days preceding the fifth trading
         day prior to the Closing Date (such average, the "Average CUC
         Price"), and, in such case, all references herein to the cash
         proceeds of the sale of the Excess Shares and similar
         references shall be deemed to mean and refer to the payments
         calculated as set forth in this Section 2.2(e)(iv).

                   (v)  As soon as practicable after the determination
         of the amount of cash, if any, to be paid to holders of
         Certificates formerly representing HFS Common Stock with
         respect to any fractional share interests, the Exchange Agent
         shall make available such amounts to such holders of Certifi-
         cates formerly representing HFS Common Stock subject












                                       -9-







         to and in accordance with the terms of Section 2.2(c).

                   (f)  Termination of Exchange Fund.  Any portion of
         the Exchange Fund which remains undistributed to the holders of
         the Certificates for six months after the Effective Time shall
         be delivered to CUC, upon demand, and any holders of the
         Certificates who have not theretofore complied with this
         Article II shall thereafter look only to CUC for payment of
         their claim for Merger Consideration, any dividends or
         distributions with respect to CUC Common Stock and any cash in
         lieu of fractional shares of CUC Common Stock.

                   (g)  No Liability.  None of CUC, HFS, the Surviving
         Corporation or the Exchange Agent shall be liable to any person
         in respect of any shares of CUC Common Stock, any dividends or
         distributions with respect thereto, any cash in lieu of
         fractional shares of CUC Common Stock or any cash from the
         Exchange Fund, in each case delivered to a public official
         pursuant to any applicable abandoned property, escheat or
         similar law.

                   (h)  Investment of Exchange Fund.  The Exchange Agent
         shall invest any cash included in the Exchange Fund, as
         directed by CUC, on a daily basis.  Any interest and other
         income resulting from such investments shall be paid to CUC.

                   (i)  Lost Certificates.  If any Certificate shall
         have been lost, stolen or destroyed, upon the making of an
         affidavit of that fact by the person claiming such Certificate
         to be lost, stolen or destroyed and, if required by the
         Surviving Corporation, the posting by such person of a bond in
         such reasonable amount as the Surviving Corporation may direct
         as indemnity against any claim that may be made against it with
         respect to such Certificate, the Exchange Agent shall issue in
         exchange for such lost, stolen or destroyed Certificate the
         Merger Consideration and, if applicable, any unpaid dividends
         and distributions on shares of CUC Common Stock deliverable in
         respect thereof and any cash in lieu of fractional shares, in
         each case pursuant to this Agreement.

                   SECTION 2.3.  Certain Adjustments.  If between the
         date hereof and the Effective Time, the outstanding shares of
         HFS Common Stock or of CUC Common Stock shall









                                       -10-







         be changed into a different number of shares by reason of any
         reclassification, recapitalization, split-up, combination or
         exchange of shares, or any dividend payable in stock or other
         securities shall be declared thereon with a record date within
         such period, the Exchange Ratio shall be adjusted accordingly
         to provide to the holders of HFS Common Stock the same economic
         effect as contemplated by this Agreement prior to such
         reclassification, recapitalization, split-up, combination,
         exchange or dividend.


                                   ARTICLE III

                          REPRESENTATIONS AND WARRANTIES

                   SECTION 3.1.  Representations and Warranties of HFS.
         Except as disclosed in the HFS Filed SEC Documents (as defined
         in Section 3.1(g)) or as set forth on the Disclosure Schedule
         delivered by HFS to CUC prior to the execution of this
         Agreement (the "HFS Disclosure Schedule") and making reference
         to the particular subsection of this Agreement to which
         exception is being taken, HFS represents and warrants to CUC as
         follows:

                   (a)  Organization, Standing and Corporate Power.  (i)
         Each of HFS and its subsidiaries (as defined in Section 8.3) is
         a corporation or other legal entity duly organized, validly
         existing and in good standing (with respect to jurisdictions
         which recognize such concept) under the laws of the juris-
         diction in which it is organized and has the requisite
         corporate or other power, as the case may be, and authority to
         carry on its business as now being conducted, except, as to
         subsidiaries, for those jurisdictions where the failure to be
         so organized, existing or in good standing individually or in
         the aggregate would not have a material adverse effect (as
         defined in Section 8.3) on HFS.  Each of HFS and its
         subsidiaries is duly qualified or licensed to do business and
         is in good standing (with respect to jurisdictions which
         recognize such concept) in each jurisdiction in which the
         nature of its business or the ownership, leasing or operation
         of its properties makes such qualification or licensing neces-
         sary, except for those jurisdictions where the failure to be so
         qualified or licensed or to be in









                                       -11-







         good standing individually or in the aggregate would not have a
         material adverse effect on HFS.  

                   (ii)  HFS has delivered to CUC prior to the execution
         of this Agreement complete and correct copies of its
         certificate of incorporation and by-laws, as amended to date.

                   (iii)  In all material respects, the minute books of
         HFS contain accurate records of all meetings and accurately
         reflect all other actions taken by the stockholders, the Board
         of Directors and all committees of the Board of Directors of
         HFS since January 1, 1995. 

                   (b)  Subsidiaries.  Exhibit 21 to HFS's Annual Report
         on Form 10-K for the fiscal year ended December 31, 1996 and
         Section 3.1(b) of the HFS Disclosure Schedule together include
         all the subsidiaries of HFS which as of the date of this
         Agreement are Significant Subsidiaries (as defined in Rule 1-02
         of Regulation S-X of the SEC).  All the outstanding shares of
         capital stock of, or other equity interests in, each such
         Significant Subsidiary have been validly issued and are fully
         paid and nonassessable and are owned directly or indirectly by
         HFS, free and clear of all pledges, claims, liens, charges,
         encumbrances and security interests of any kind or nature
         whatsoever (collectively, "Liens") and free of any other
         restriction (including any restriction on the right to vote,
         sell or otherwise dispose of such capital stock or other
         ownership interests).

                   (c)  Capital Structure.  The authorized capital stock
         of HFS consists of 600,000,000 shares of HFS Common Stock and
         10,000,000 shares of preferred stock, par value $1.00 per share
         ("HFS Preferred Stock").  At the close of business on May 21,
         1997:  (i) 158,291,401 shares of HFS Common Stock were issued
         and outstanding; (ii) no shares of HFS Common Stock were held
         by HFS in its treasury; (iii) no shares of HFS Preferred Stock
         were issued and outstanding; (iv) 40,013,543 shares of HFS
         Common Stock were reserved for issuance pursuant to the HFS
         1992 Stock Option Plan and the HFS 1993 Stock Option Plan,
         complete and correct copies of which have been delivered to CUC
         (such plans, collectively, the "HFS Stock Plans"); and (v)
         8,080,102 shares of HFS Common Stock were reserved for issuance
         upon conversion of HFS's 4-1/2% Convertible









                                       -12-







         Senior Notes due 1999 and 3,598,320 shares of HFS Common Stock
         were reserved for issuance upon conversion of HFS's 4-3/4%
         Convertible Senior Notes due 2003 (collectively, the "HFS
         Convertible Securities").  Section 3.1(c) of the HFS Disclosure
         Schedule sets forth a complete and correct list, as of May 21,
         1997, of the number of shares of HFS Common Stock subject to
         employee stock options or other rights to purchase or receive
         HFS Common Stock granted under the HFS Stock Plans
         (collectively, "HFS Employee Stock Options"), the dates of
         grant and exercise prices thereof.  All outstanding shares of
         capital stock of HFS are, and all shares which may be issued
         will be, when issued, duly authorized, validly issued, fully
         paid and nonassessable and not subject to preemptive rights.
         Except as set forth in this Section 3.1(c) and except for
         changes since May 21, 1997 resulting from the issuance of
         shares of HFS Common Stock pursuant to the HFS Employee Stock
         Options, the HFS Convertible Securities or as permitted by
         Section 4.1(a)(i)(y) and 4.1(a)(ii), (x) there are not issued,
         reserved for issuance or outstanding (A) any shares of capital
         stock or other voting securities of HFS, (B) any securities of
         HFS or any HFS subsidiary convertible into or exchangeable or
         exercisable for shares of capital stock or voting securities of
         HFS, (C) any warrants, calls, options or other rights to
         acquire from HFS or any HFS subsidiary, and any obligation of
         HFS or any HFS subsidiary to issue, any capital stock, voting
         securities or securities convertible into or exchangeable or
         exercisable for capital  stock or voting securities of HFS, and
         (y) there are no outstanding obligations of HFS or any HFS
         subsidiary to repurchase, redeem or otherwise acquire any such
         securities or to issue, deliver or sell, or cause to be issued,
         delivered or sold, any such securities.  There are no
         outstanding (A) securities of HFS or any HFS subsidiary
         convertible into or exchangeable or exercisable for shares of
         capital stock or other voting securities or ownership interests
         in any HFS subsidiary, (B) warrants, calls, options or other
         rights to acquire from HFS or any HFS subsidiary, and any
         obligation of HFS or any HFS subsidiary to issue, any capital
         stock, voting securities or other ownership interests in, or
         any securities convertible into or exchangeable or exercisable
         for any capital stock, voting securities or ownership interests
         in, any HFS subsidiary or (C) obligations of HFS or any HFS
         subsidiary to repurchase, redeem or otherwise acquire any such
         outstanding securities of HFS subsidiaries or to issue, deliver
         or sell, or cause to be








                                       -13-







         issued, delivered or sold, any such securities.  Neither HFS
         nor any HFS subsidiary is a party to any agreement restricting
         the transfer of, relating to the voting of, requiring
         registration of, or granting any preemptive or, except as
         provided by the terms of the HFS Employee Stock Options and the
         HFS Convertible Securities,  antidilutive rights with respect
         to, any securities of the type referred to in the two preceding
         sentences.  Other than the HFS subsidiaries, HFS does not
         directly or indirectly beneficially own any securities or other
         beneficial ownership interests in any other entity except for
         non-controlling investments made in the ordinary course of
         business in entities which are not individually or in the
         aggregate material to HFS and its subsidiaries as a whole.

                   (d)  Authority; Noncontravention.  HFS has all
         requisite corporate power and authority to enter into this
         Agreement and, subject, in the case of the Merger, to the HFS
         Stockholder Approval (as defined in Section 3.1(l)) to
         consummate the transactions contemplated by this Agreement.
         The execution and delivery of this Agreement by HFS and the
         consummation by HFS of the transactions contemplated by this
         Agreement have been duly authorized by all necessary corporate
         action on the part of HFS, subject, in the case of the Merger,
         to the HFS Stockholder Approval.  This Agreement has been duly
         executed and delivered by HFS and, assuming the due
         authorization, execution and delivery by CUC, constitutes the
         legal, valid and binding obligation of HFS, enforceable against
         HFS in accordance with its terms.  The execution and delivery
         of this Agreement do not, and the consummation of the
         transactions contemplated by this Agreement and compliance with
         the provisions of this Agreement will not, conflict with, or
         result in any violation of, or default (with or without notice
         or lapse of time, or both) under, or give rise to a right of
         termination, cancellation or acceleration of any obligation or
         loss of a benefit under, or result in the creation of any Lien
         upon any of the properties or assets of HFS or any of its
         subsidiaries under, (i) the certificate of incorporation or by-
         laws of HFS or the comparable organizational documents of any
         of its subsidiaries, (ii) any loan or credit agreement, note,
         bond, mortgage, indenture, lease or other agreement,
         instrument, permit, concession, franchise, license or similar
         authorization applicable to HFS or any of its subsidiaries or
         their









                                       -14-







         respective properties or assets or (iii) subject to the
         governmental filings and other matters referred to in the
         following sentence, any judgment, order, decree, statute, law,
         ordinance, rule or regulation applicable to HFS or any of its
         subsidiaries or their respective properties or assets, other
         than, in the case of clauses (ii) and (iii), any such
         conflicts, violations, defaults, rights, losses or Liens that
         individually or in the aggregate would not (x) have a material
         adverse effect on HFS or (y) reasonably be expected to impair
         the ability of HFS to perform its obligations under this
         Agreement.  No consent, approval, order or authorization of,
         action by or in respect of, or registration, declaration or
         filing with, any federal, state, local or foreign government,
         any court, administrative, regulatory or other governmental
         agency, commission or authority or any nongovernmental self-
         regulatory agency, commission or authority (a "Governmental
         Entity") is required by or with respect to HFS or any of its
         subsidiaries in connection with the execution and delivery of
         this Agreement by HFS or the consummation by HFS of the
         transactions contemplated by this Agreement, except for (1) the
         filing of a pre-merger notification and report form by HFS
         under the Hart-Scott-Rodino Antitrust Improvements Act of 1976,
         as amended (the "HSR Act"); (2) the filing with the SEC of (A)
         a proxy statement relating to the HFS Stockholders Meeting (as
         defined in Section 5.1(b)) (such proxy statement, together with
         the proxy statement relating to the CUC Stockholders Meeting
         (as defined in Section 5.1(c)), in each case as amended or
         supplemented from time to time, the "Joint Proxy Statement"),
         and (B) such reports under Section 13(a), 13(d), 15(d) or 16(a)
         of the Securities Exchange Act of 1934, as amended (the
         "Exchange Act"), as may be required in connection with this
         Agreement and the transactions contemplated by this Agreement;
         (3) the filing of the Certificate of Merger with the Secretary
         of State of Delaware and appropriate documents with the
         relevant authorities of other states in which HFS is qualified
         to do business and such filings with Governmental Entities to
         satisfy the applicable requirements of state securities or
         "blue sky" laws; and (4) such consents, approvals, orders or
         authorizations the failure of which to be made or obtained
         individually or in the aggregate would not (x) have a material
         adverse effect on HFS or (y) reasonably be expected to impair
         the ability of HFS to perform its obligations under this
         Agreement.









                                       -15-







                   (e)  SEC Documents; Undisclosed Liabilities. HFS has
         filed all required registration statements, prospectuses,
         reports, schedules, forms, statements and other documents
         (including exhibits and all other information incorporated
         therein) with the SEC since December 31, 1994 (the "HFS SEC
         Documents").  As of their respective dates, the HFS SEC
         Documents complied in all material respects with the
         requirements of the Securities Act of 1933, as amended (the
         "Securities Act"), or the Exchange Act, as the case may be, and
         the rules and regulations of the SEC promulgated thereunder
         applicable to such HFS SEC Documents, and none of the HFS SEC
         Documents when filed contained any untrue statement of a
         material fact or omitted to state a material fact required to
         be stated therein or necessary in order to make the statements
         therein, in light of the circumstances under which they were
         made, not misleading.  The financial statements of each of HFS
         or PHH Corporation ("PHH") included in the HFS SEC Documents
         comply as to form, as of their respective dates of filing with
         the SEC, in all material respects with applicable accounting
         requirements and the published rules and regulations of the SEC
         with respect thereto, have been prepared in accordance with
         GAAP (except, in the case of unaudited statements, as permitted
         by Form 10-Q of the SEC) applied on a consistent basis during
         the periods involved (except as may be indicated in the notes
         thereto) and fairly present the consolidated financial position
         of HFS and its consolidated subsidiaries (and PHH, where
         applicable) as of the dates thereof and the consolidated
         results of their operations and cash flows for the periods then
         ended (subject, in the case of unaudited statements, to normal
         year-end audit adjustments and except that, in the case of
         financial statements included therein which were later restated
         to account for one or more business combinations accounted for
         as poolings-of-interest, such original financial statements do
         not reflect such restatements).  Except (i) as reflected in such
         financial statements or in the notes thereto or (ii) for
         liabilities incurred in connection with this Agreement or the
         transactions contemplated hereby, neither HFS nor any of its
         subsidiaries has any liabilities or obligations of any nature
         which, individually or in the aggregate, would have a material
         adverse effect on HFS.

                   (f)  Information Supplied.  None of the information
         supplied or to be supplied by HFS specifically for









                                       -16-







         inclusion or incorporation by reference in (i) the registration
         statement on Form S-4 to be filed with the SEC by CUC in
         connection with the issuance of CUC Common Stock in the Merger
         (the "Form S-4") will, at the time the Form S-4 becomes
         effective under the Securities Act, contain any untrue
         statement of a material fact or omit to state any material fact
         required to be stated therein or necessary to make the
         statements therein not misleading or (ii) the Joint Proxy
         Statement will, at the date it is first mailed to HFS's
         stockholders or at the time of the HFS Stockholders Meeting,
         contain any untrue statement of a material fact or omit to
         state any material fact required to be stated therein or
         necessary in order to make the statements therein, in light of
         the circumstances under which they are made, not misleading.
         The Joint Proxy Statement will comply as to form in all
         material respects with the requirements of the Exchange Act and
         the rules and regulations thereunder, except that no
         representation or warranty is made by HFS with respect to
         statements made or incorporated by reference therein based on
         information supplied by CUC specifically for inclusion or
         incorporation by reference in the Joint Proxy Statement.

                   (g)  Absence of Certain Changes or Events. Except for
         liabilities incurred in connection with this Agreement or the
         transactions contemplated hereby and except as permitted by
         Section 4.1(a), since December 31, 1996, HFS and its
         subsidiaries have conducted their business only in the ordinary
         course or as disclosed in any HFS SEC Document filed since such
         date and prior to the date hereof, and there has not been (i)
         any material adverse change (as defined in Section 8.3) in HFS,
         (ii) any declaration, setting aside or payment of any dividend
         or other distribution (whether in cash, stock or property) with
         respect to any of HFS's capital stock, (iii) any split,
         combination or reclassification of any of HFS's capital stock
         or any issuance or the authorization of any issuance of any
         other securities in respect of, in lieu of or in substitution
         for shares of HFS's capital stock, except for issuances of HFS
         Common Stock upon conversion of HFS Convertible Securities or
         upon the exercise of HFS Employee Stock Options, in each case
         awarded prior to the date hereof in accordance with their
         present terms or issued pursuant to Section 4.1(a), (iv)(A) any
         granting by HFS or any of its subsidiaries to any current or
         former director, executive officer or other key employee









                                       -17-







         of HFS or its subsidiaries of any increase in compensation,
         bonus or other benefits, except for normal increases as a
         result of promotions, normal increases of base pay in the
         ordinary course of business or as was required under any
         employment agreements in effect as of December 31, 1996, (B)
         any granting by HFS or any of its subsidiaries to any such
         current or former director, executive officer or key employee
         of any increase in severance or termination pay, or (C) any
         entry by HFS or any of its subsidiaries into, or any amendment
         of, any employment, deferred compensation, consulting,
         severance, termination or indemnification agreement with any
         such current or former director, executive officer or key
         employee, (v) except insofar as may have been disclosed in HFS
         SEC Documents filed and publicly available prior to the date of
         this Agreement (as amended to the date hereof, the "HFS Filed
         SEC Documents") or required by a change in GAAP, any change in
         accounting methods, principles or practices by HFS materially
         affecting its assets, liabilities or business, (vi) except
         insofar as may have been disclosed in the HFS Filed SEC
         Documents, any tax election that individually or in the
         aggregate would have a material adverse effect on HFS or any of
         its tax attributes or any settlement or compromise of any
         material income tax liability, or (vii) any action taken by HFS
         or any of the HFS subsidiaries during the period from January
         1, 1997 through the date of this Agreement that, if taken
         during the period from the date of this Agreement through the
         Effective Time would constitute a breach of Section 4.1(a).

                   (h)  Compliance with Applicable Laws; Litigation.
         (i)  HFS, its subsidiaries and employees hold all permits,
         licenses, variances, exemptions, orders, registrations and
         approvals of all Governmental Entities which are required for
         the operation of the businesses of HFS and its subsidiaries
         (the "HFS Permits"), except where the failure to have any such
         HFS Permits individually or in the aggregate would not have a
         material adverse effect on HFS.  HFS and its subsidiaries are
         in compliance with the terms of the HFS Permits and all
         applicable statutes, laws, ordinances, rules and regulations,
         except where the failure so to comply individually or in the
         aggregate would not have a material adverse effect on HFS.  As
         of the date of this Agreement, except as disclosed in the HFS
         Filed SEC Documents, no action,










                                       -18-







         demand, requirement or investigation by any Governmental Entity
         and no suit, action or proceeding by any person, in each case
         with respect to HFS or any of its subsidiaries or any of their
         respective properties is pending or, to the knowledge (as de-
         fined in Section 8.3) of HFS, threatened, other than, in each
         case, those the outcome of which individually or in the
         aggregate would not (A) have a material adverse effect on HFS
         or (B) reasonably be expected to impair the ability of HFS to
         perform its obligations under this Agreement or prevent or
         materially delay the consummation of any of the transactions
         contemplated by this Agreement. 

                   (ii)  Neither HFS nor any HFS subsidiary is subject
         to any outstanding order, injunction or decree which has had
         or, insofar as can be reasonably foreseen, individually or in
         the aggregate will have a material adverse effect on HFS.

                   (i)  Absence of Changes in Benefit Plans.  HFS has
         delivered to CUC true and complete copies of (i) all severance
         and employment agreements of HFS with directors, executive
         officers or key employees, (ii) all severance programs and
         policies of each of HFS and each HFS subsidiary, and (iii) all
         plans or arrangements of HFS and each HFS subsidiary relating
         to its employees which contain change in control provisions.
         Since December 31, 1996, there has not been any adoption or
         amendment in any material respect by HFS or any of its subsid-
         iaries of any collective bargaining agreement, employment
         agreement, consulting agreement, severance agreement or any
         material bonus, pension, profit sharing, deferred compensation,
         incentive compensation, stock ownership, stock purchase, stock
         option, phantom stock, retirement, vacation, severance,
         disability, death benefit, hospitalization, medical or other
         plan, arrangement or understanding providing benefits to any
         current or former employee, officer or director of HFS or any
         of its wholly owned subsidiaries (collectively, the "HFS
         Benefit Plans"), or any material change in any actuarial or
         other assumption used to calculate funding obligations with
         respect to any HFS pension plans, or any material change in the
         manner in which contributions to any HFS pension plans are made
         or the basis an which such contributions are determined.  












                                       -19-







                   (j)  ERISA Compliance.  (i)  With respect to the HFS
         Benefit Plans, no event has occurred and, to the knowledge of
         HFS, there exists no condition or set of circumstances, in
         connection with which HFS or any of its subsidiaries could be
         subject to any liability that individually or in the aggregate
         would have a material adverse effect on HFS under the Employee
         Retirement Income Security Act of 1974, as amended ("ERISA"),
         the Code or any other applicable law.

                   (ii)  Each HFS Benefit Plan has been administered in
         accordance with its terms, except for any failures so to
         administer any HFS Benefit Plan that individually or in the
         aggregate would not have a material adverse effect on HFS.
         HFS, its subsidiaries and all the HFS Benefit Plans have been
         operated, and are, in compliance with the applicable provisions
         of ERISA, the Code and all other applicable laws and the terms
         of all applicable collective bargaining agreements, except for
         any failures to be in such compliance that individually or in
         the aggregate would not have a material adverse effect on HFS.
         Each HFS Benefit Plan that is intended to be qualified under
         Section 401(a) or 401(k) of the Code has received a favorable
         determination letter from the IRS that it is so qualified and
         each trust established in connection with any HFS Benefit Plan
         that is intended to be exempt from federal income taxation
         under Section 501(a) of the Code has received a determination
         letter from the IRS that such trust is so exempt.  To the
         knowledge of HFS, no fact or event has occurred since the date
         of any determination letter from the IRS which is reasonably
         likely to affect adversely the qualified status of any such HFS
         Benefit Plan or the exempt status of any such trust.

                   (iii)  Neither HFS nor any of its subsidiaries has
         incurred any unsatisfied liability under Title IV of ERISA
         (other than liability for premiums to the Pension Benefit
         Guaranty Corporation arising in the ordinary course).  No HFS
         Benefit Plan has incurred an "accumulated funding deficiency"
         (within the meaning of Section 302 of ERISA or Section 412 of
         the Code) whether or not waived.  To the knowledge of HFS,
         there are not any facts or













                                       -20-







         circumstances that would materially change the funded status of
         any HFS Benefit Plan that is a "defined benefit" plan (as
         defined in Section 3(35) of ERISA) since the date of the most
         recent actuarial report for such plan.  No HFS Benefit Plan is
         a "multiemployer plan" within the meaning of Section 3(37) of
         ERISA.

                   (iv)  With respect to each of the HFS Benefit Plans
         (other than any multiemployer plan) that is subject to Title IV
         of ERISA, the present value of accrued benefits under each such
         plan, based upon the actuarial assumptions used for funding
         purposes in the most recent actuarial report prepared by such
         plan's actuary with respect to such plan, did not, as of its
         latest valuation date, exceed the then current value of the
         aggregate assets of such plans allocable to such accrued bene-
         fits in any material respect.  With respect to any HFS Benefit
         Plan that is a multiemployer plan, (A) none of HFS nor any of
         its subsidiaries has any contingent liability under Section
         4204 of ERISA, and no circumstances exist that present a
         material risk that any such plan will go into reorganization,
         and (B) the aggregate withdrawal liability of HFS and its
         subsidiaries, computed as if a complete withdrawal by HFS and
         any of its subsidiaries had occurred under each such HFS
         Benefit Plan on the date hereof, would not be material.

                   (v)  No HFS Benefit Plan provides medical benefits
         (whether or not insured), with respect to current or former
         employees after retirement or other termination of service
         (other than coverage mandated by applicable law or benefits,
         the full cost of which is borne by the current or former
         employee) other than individual arrangements the amounts of
         which are not material.

                   (vi)  As of the date of this Agreement, neither HFS
         nor any of its subsidiaries is a party to any collective
         bargaining or other labor union contract applicable to persons
         employed by HFS or any of its subsidiaries and no collective
         bargaining agreement is being negotiated by HFS or any of its
         subsidiaries.  As of the date of this Agreement, there is no
         labor dispute, strike or work stoppage












                                       -21-







         against HFS or any of its subsidiaries pending or, to the
         knowledge of HFS, threatened which may interfere with the
         respective business activities of HFS or any of its
         subsidiaries, except where such dispute, strike or work
         stoppage individually or in the aggregate would not have a
         material adverse effect on HFS.  As of the date of this
         Agreement, to the knowledge of HFS, none of HFS, any of its
         subsidiaries or any of their respective representatives or
         employees has committed any material unfair labor practice in
         connection with the operation of the respective businesses of
         HFS or any of its subsidiaries, and there is no material charge
         or complaint against HFS or any of its subsidiaries by the Na-
         tional Labor Relations Board or any comparable governmental
         agency pending or threatened in writing.

                   (vii)  No employee of HFS will be entitled to any
         material payment, additional benefits or any acceleration of
         the time of payment or vesting of any benefits under any HFS
         Benefit Plan as a result of the transactions contemplated by
         this Agreement (either alone or in conjunction with any other
         event such as a termination of employment), except that all HFS
         Employee Stock Options will vest as of the Effective Time as a
         result of the Merger.

                   (k)  Taxes.  (i)  Each of HFS and its subsidiaries
         has filed all material tax returns and reports required to be
         filed by it and all such returns and reports are complete and
         correct in all material respects, or requests for extensions to
         file such returns or reports have been timely filed, granted
         and have not expired, except to the extent that such failures
         to file, to be complete or correct or to have extensions
         granted that remain in effect individually or in the aggregate
         would not have a material adverse effect on HFS.  HFS and each
         of its subsidiaries has paid (or HFS has paid on its behalf)
         all taxes (as defined herein) shown as due on such returns, and
         the most recent financial statements contained in the HFS Filed
         SEC Documents reflect an adequate reserve in accordance with
         GAAP for all taxes payable by HFS and its subsidiaries for all
         taxable periods and portions thereof accrued through the date
         of such financial statements.












                                       -22-







                   (ii)  No deficiencies for any taxes have been
         proposed, asserted or assessed against HFS or any of its
         subsidiaries that are not adequately reserved for, except for
         deficiencies that individually or in the aggregate would not
         have a material adverse effect on HFS.  No federal income tax
         returns of HFS and each of its subsidiaries consolidated in
         such returns have closed by virtue of the applicable statute of
         limitations.

                   (iii)  Neither HFS nor any of its subsidiaries has
         taken any action or knows of any fact, agreement, plan or other
         circumstance that is reasonably likely to prevent the Merger
         from qualifying as a reorganization within the meaning of
         Section 368(a) of the Code.

                   (iv)  As used in this Agreement, "taxes" shall
         include all (x) federal, state, local or foreign income,
         property, sales, excise and other taxes or similar governmental
         charges, including any interest, penalties or additions with
         respect thereto, (y) liability for the payment of any amounts
         of the type described in (x) as a result of being a member of
         an affiliated, consolidated, combined or unitary group, and (z)
         liability for the payment of any amounts as a result of being
         party to any tax sharing agreement or as a result of any
         express or implied obligation to indemnify any other person
         with respect to the payment of any amounts of the type
         described in clause (x) or (y).

                   (l)  Voting Requirements.  The affirmative vote at
         the HFS Stockholders Meeting (the "HFS Stockholder Approval")
         of (i) the holders of a majority of all outstanding shares of
         HFS Common Stock to adopt this Agreement is the only vote of
         the holders of any class or series of HFS's capital stock
         necessary to approve and adopt this Agreement and the
         transactions contemplated hereby, including the Merger and (ii)
         the holders of a majority of all shares of HFS Common Stock
         casting votes is the only vote of the holders of any class or
         series of HFS's capital stock necessary to approve the New CUC
         Stock Plan (as defined in Section 5.17(e)).

                   (m)  State Takeover Statutes.  The Board of Directors 
         of HFS has approved this Agreement and the










                                       -23-







         transactions contemplated hereby and, assuming the accuracy of
         CUC's representation and warranty contained in Section 3.2(q),
         such approval constitutes approval of the Merger and the other
         transactions contemplated hereby by the HFS Board of Directors
         under the provisions of Section 203 of the DGCL such that
         Section 203 of the DGCL does not apply to this Agreement and
         the transactions contemplated hereby.  To the knowledge of HFS,
         no other state takeover statute is applicable to the Merger or
         the other transactions contemplated hereby.

                   (n)  Accounting Matters.  To its knowledge, neither
         HFS nor any of its affiliates (as such term is used in Section
         5.11) has taken or agreed to take any action that would prevent
         the business combination to be effected by the Merger from
         being accounted for as a pooling of interests and HFS has no
         reason to believe that the Merger will not qualify for "pooling
         of interests" accounting.

                   (o)  Brokers.  No broker, investment banker,
         financial advisor or other person other than Bear Stearns & Co.
         Inc. ("Bear Stearns"), the fees and expenses of which will be
         paid by HFS, is entitled to any broker's, finder's, financial
         advisor's or other similar fee or commission in connection with
         the transactions contemplated by this Agreement based upon
         arrangements made by or on behalf of HFS.  HFS has furnished to
         CUC true and complete copies of all agreements under which any
         such fees or expenses are payable and all indemnification and
         other agreements related to the engagement of the persons to
         whom such fees are payable.

                   (p)  Opinion of Financial Advisor.  HFS has received
         the opinion of Bear Stearns dated the date of this Agreement,
         to the effect that, as of such date, the Exchange Ratio for the
         conversion of HFS Common Stock into CUC Common Stock is fair
         from a financial point of view to holders of shares of HFS
         Common Stock (other than CUC and its affiliates), a signed copy
         of which opinion has been delivered to CUC, it being understood
         and agreed by CUC that such opinion is for the benefit of the
         Board of Directors of HFS and may not be relied upon by CUC,
         its affiliates or any of their respective stockholders.

                   (q)  Ownership of CUC Common Stock.  As of the date
         hereof, neither HFS nor, to its knowledge without









                                       -24-







         independent investigation, any of its affiliates, (i)
         beneficially owns (as defined in Rule 13d-3 under the Exchange
         Act), directly or indirectly, or (ii) is party to any
         agreement, arrangement or understanding for the purpose of
         acquiring, holding, voting or disposing of, in each case,
         shares of capital stock of CUC.

                   (r)  Intellectual Property.  HFS and its subsidiaries
         own or have a valid license to use all trademarks, service
         marks, trade names, patents and copyrights (including any
         registrations or applications for registration of any of the
         foregoing) (collectively, the "HFS Intellectual Property")
         necessary to carry on its business substantially as currently
         conducted except for such HFS Intellectual Property the failure
         of which to own or validly license individually or in the
         aggregate would not have a material adverse effect on HFS.
         Neither HFS nor any such subsidiary has received any notice of
         infringement of or conflict with, and, to HFS's knowledge,
         there are no infringements of or conflicts (i) with the rights
         of others with respect to the use of, or (ii) by others with
         respect to, any HFS Intellectual Property that individually or
         in the aggregate, in either such case, would have a material
         adverse effect on HFS.

                   (s)  Certain Contracts.  Except as set forth in the
         HFS Filed SEC Documents, neither HFS nor any of its
         subsidiaries is a party to or bound by (i) any "material
         contract" (as such term is defined in Item 601(b)(10) of
         Regulation S-K of the SEC), (ii) any non-competition agreement
         or any other agreement or obligation which purports to limit in
         any material respect the manner in which, or the localities in
         which, all or any material portion of the business of HFS and
         its subsidiaries (including, for purposes of this Section
         3.1(s), CUC and its subsidiaries, assuming the Merger has taken
         place), taken as a whole, is or would be conducted, or (iii)
         any contract or other agreement which would prohibit or materi-
         ally delay the consummation of the Merger or any of the
         transactions contemplated by this Agreement (all contracts of
         the type described in clauses (i) and (ii) being referred to
         herein as "HFS Material Contracts"). Each HFS Material Contract
         is valid and binding on HFS (or, to the extent an HFS
         subsidiary is a party, such subsidiary) and is in full force
         and effect, and HFS and each HFS subsidiary have in all
         material respects performed all obligations required to be
         performed by them







                                       -25-







         to date under each HFS Material Contract, except where such
         noncompliance, individually or in the aggregate, would not have
         a material adverse effect on HFS.  Neither HFS nor any HFS
         subsidiary knows of, or has received notice of, any violation
         or default under (nor, to the knowledge of HFS, does there
         exist any condition which with the passage of time or the
         giving of notice or both would result in such a violation or
         default under) any HFS Material Contract.

                   SECTION 3.2.  Representations and Warranties of CUC.
         Except as disclosed in the CUC Filed SEC Documents (as defined
         in Section 3.2(g)) or as set forth on the Disclosure Schedule
         delivered by CUC to HFS prior to the execution of this
         Agreement (the "CUC Disclosure Schedule") and making reference
         to the particular subsection of this Agreement to which
         exception is being taken, CUC represents and warrants to HFS as
         follows:

                   (a)  Organization, Standing and Corporate Power.  (i)
         Each of CUC and its subsidiaries is a corporation or other
         legal entity duly organized, validly existing and in good
         standing (with respect to jurisdictions which recognize such
         concept) under the laws of the jurisdiction in which it is
         organized and has the requisite corporate or other power, as
         the case may be, and authority to carry on its business as now
         being conducted, except, as to subsidiaries, for those
         jurisdictions where the failure to be so organized, existing or
         in good standing individually or in the aggregate would not
         have a material adverse effect on CUC.  Each of CUC and its
         subsidiaries is duly qualified or licensed to do business and
         is in good standing (with respect to jurisdictions which
         recognize such concept) in each jurisdiction in which the
         nature of its business or the ownership, leasing or operation
         of its properties makes such qualification or licensing
         necessary, except for those jurisdictions where the failure to
         be so qualified or licensed or to be in good standing
         individually or in the aggregate would not have a material
         adverse effect on CUC.

                   (ii)  CUC has delivered to HFS prior to the execution
         of this Agreement complete and correct copies of its
         certificate of incorporation and by-laws, as amended to date.










                                       -26-







                   (iii)  In all material respects, the minute books of
         CUC contain accurate records of all meetings and accurately
         reflect all other actions taken by the stockholders, the Board
         of Directors and all committees of the Board of Directors of
         CUC since January 1, 1995.

                   (b)  Subsidiaries.  Exhibit 21 to CUC's Annual Report
         on Form 10-K for the fiscal year ended January 31, 1997
         includes all the subsidiaries of CUC which as of the date of
         this Agreement are Significant Subsidiaries.  All the
         outstanding shares of capital stock of, or other equity
         interests in, each such Significant Subsidiary have been
         validly issued and are fully paid and nonassessable and are
         owned directly or indirectly by CUC, free and clear of all
         Liens and free of any other restriction (including any
         restriction on the right to vote, sell or otherwise dispose of
         such capital stock or other ownership interests).

                   (c)  Capital Structure.  The authorized capital stock
         of CUC consists of 600,000,000 shares of CUC Common Stock and
         1,000,000 shares of preferred stock, par value $.01 per share,
         of CUC ("CUC Preferred Stock").  At the close of business on
         May 22, 1997:  (i) 409,329,930 shares of CUC Common Stock were
         issued and outstanding (including shares of restricted CUC
         Common Stock); (ii) 6,168,405 shares of CUC Common Stock were
         held by CUC in its treasury; (iii) no shares of CUC Preferred
         Stock were issued and outstanding; (iv) 62,155,579 shares of
         CUC Common Stock were reserved for issuance pursuant to the CUC
         1990 Director Stock Option Plan, the CUC 1992 Directors Stock
         Option Plan, the CUC 1994 Directors Stock Option Plan, the CUC
         1992 Employee Stock Option Plan, the CUC 1992 Bonus and Salary
         Replacement Stock Option Plan, the CUC 1987 Stock Option Plan,
         the 1989 Restricted Stock Plan, the 1994 Employee Stock
         Purchase Plan, the 1997 Stock Option Plan, certain CUC non-
         plans options, the Sierra 1987 Stock Option Plan, the Sierra
         1995 Stock Option Plan and Award Plan, the Knowledge Adventure,
         Inc. 1993 Stock Option Plan (and related non-plan options), the
         Papyrus Design Group, Inc. 1992 Stock Option Plan and the
         Entertainment Publications, Inc. 1988 Nonqualified Stock Option
         Plan, complete and correct copies of which have been delivered
         to HFS (such plans, collectively, the "CUC Stock Plans"); and
         (v) 21,705,925 shares of CUC Common Stock were reserved for
         issuance upon conversion









                                       -27-







         of the 6-1/2% Convertible Subordinated Notes due 2001 of Sierra
         On-Line, Inc. and the CUC 3% Convertible Subordinated Notes due
         February 15, 2002 (including all of the foregoing in this
         clause (v) and all convertible securities listed in Section
         3.2(c) of the CUC Disclosure Schedule, the "CUC Convertible
         Securities"). Section 3.2(c) of the CUC Disclosure Schedule
         sets forth a complete and correct list, as of May 22, 1997, of
         the number of shares of CUC Common Stock subject to employee
         stock options or other rights to purchase or receive CUC Common
         Stock granted under the CUC Stock Plans (collectively, "CUC
         Employee Stock Options"), the dates of grant and exercise
         prices thereof.  All outstanding shares of capital stock of CUC
         are, and all shares which may be issued pursuant to this
         Agreement or otherwise will be, when issued, duly authorized,
         validly issued, fully paid and nonassessable and not subject to
         preemptive rights. Except as set forth in this Section 3.2(c)
         and except for changes since May 22, 1997 resulting from the
         issuance of shares of CUC Common Stock pursuant to the CUC
         Employee Stock Options, the CUC Convertible Securities or as
         permitted by Section 4.1(b)(i)(y) and 4.1(b)(ii), (x) there are
         not issued, reserved for issuance or outstanding (A) any shares
         of capital stock or other voting securities of CUC, (B) any
         securities of CUC or any CUC subsidiary convertible into or
         exchangeable or exercisable for shares of capital stock or
         voting securities of CUC, (C) any warrants, calls, options or
         other rights to acquire from CUC or any CUC subsidiary, and any
         obligation of CUC or any CUC subsidiary to issue, any capital
         stock, voting securities or securities convertible into or
         exchangeable or exercisable for capital stock or voting
         securities of CUC, and (y) there are no outstanding obligations
         of CUC or any CUC subsidiary to repurchase, redeem or otherwise
         acquire any such securities or to issue, deliver or sell, or
         cause to be issued, delivered or sold, any such securities.
         There are no outstanding (A) securities of CUC or any CUC
         subsidiary convertible into or exchangeable or exercisable for
         shares of capital stock or other voting securities or ownership
         interests in any CUC subsidiary, (B) warrants, calls, options
         or other rights to acquire from CUC or any CUC subsidiary, and
         any obligation of CUC or any CUC subsidiary to issue, any
         capital stock, voting securities or other ownership interests
         in, or any securities convertible into or exchangeable or
         exercisable for any capital stock, voting securities or
         ownership interests in, any CUC subsidiary or (C) obligations
         of








                                       -28-







         CUC or any CUC subsidiary to repurchase, redeem or otherwise
         acquire any such outstanding securities of CUC subsidiaries or
         to issue, deliver or sell, or cause to be issued, delivered or
         sold, any such securities.  Neither CUC nor any CUC subsidiary
         is a party to any agreement restricting the transfer of,
         relating to the voting of, requiring registration of, or
         granting any preemptive or, except as provided by the terms of
         the CUC Employee Stock Options and the CUC Convertible
         Securities, antidilutive rights with respect to, any securities
         of the type referred to in the two preceding sentences.  Other
         than the CUC subsidiaries, CUC does not directly or indirectly
         beneficially own any securities or other beneficial ownership
         interests in any other entity except for non-controlling
         investments made in the ordinary course of business in entities
         which are not individually or in the aggregate material to CUC
         and its subsidiaries as a whole.

                   (d)  Authority; Noncontravention.  CUC has all
         requisite corporate power and authority to enter into this
         Agreement and, subject to the CUC Stockholder Approval (as
         defined in Section 3.2(l)), to consummate the transactions
         contemplated by this Agreement.  The execution and delivery of
         this Agreement by CUC and the consummation by CUC of the
         transactions contemplated by this Agreement have been duly
         authorized by all necessary corporate action on the part of
         CUC, subject, in the case of the Merger and the issuance of CUC
         Common Stock in connection with the Merger, to the CUC
         Stockholder Approval.  This Agreement has been duly executed
         and delivered by CUC and, assuming the due authorization,
         execution and delivery by HFS, constitutes the legal, valid and
         binding obligations of CUC, enforceable against CUC in
         accordance with its terms.  The execution and delivery of this
         Agreement do not, and the consummation of the transactions
         contemplated by this Agreement and compliance with the
         provisions of this Agreement will not, conflict with, or result
         in any violation of, or default (with or without notice or
         lapse of time, or both) under, or give rise to a right of
         termination, cancellation or acceleration of any obligation or
         loss of a benefit under, or result in the creation of any Lien
         upon any of the properties or assets of CUC or any of its
         subsidiaries under, (i) the certificate of incorporation or by-
         laws of CUC or the comparable organizational documents of any
         of its subsidiaries, (ii) any loan or credit agree-









                                       -29-







         ment, note, bond, mortgage, indenture, lease or other
         agreement, instrument, permit, concession, franchise, license
         or similar authorization applicable to CUC or any of its
         subsidiaries or their respective properties or assets or (iii)
         subject to the governmental filings and other matters referred
         to in the following sentence, any judgment, order, decree,
         statute, law, ordinance, rule or regulation applicable to CUC
         or any of its subsidiaries or their respective properties or
         assets, other than, in the case of clauses (ii) and (iii), any
         such conflicts, violations, defaults, rights, losses or Liens
         that individually or in the aggregate would not (x) have a
         material adverse effect on CUC or (y) reasonably be expected to
         impair the ability of CUC to perform its obligations under this
         Agreement.  No consent, approval, order or authorization of,
         action by, or in respect of, or registration, declaration or
         filing with, any Governmental Entity is required by or with
         respect to CUC or any of its subsidiaries in connection with
         the execution and delivery of this Agreement by CUC or the
         consummation by CUC of the transactions contemplated by this
         Agreement, except for (1) the filing of a pre-merger
         notification and report form by CUC under the HSR Act; (2) the
         filing with the SEC of (A) the Joint Proxy Statement relating
         to the CUC Stockholders Meeting, (B) the Form S-4 and (C) such
         reports under Section 13(a), 13(d), 15(d) or 16(a) of the
         Exchange Act as may be required in connection with this
         Agreement and the transactions contemplated by this Agreement;
         (3) the filing of the Certificate of Merger with the Secretary
         of State of Delaware and appropriate documents with the
         relevant authorities of other states in which CUC is qualified
         to do business and such filings with Governmental Entities to
         satisfy the applicable requirements of state securities or
         "blue sky" laws; (4) such filings with and approvals of the
         NYSE to permit the shares of CUC Common Stock that are to be
         issued in the Merger and under the HFS Stock Plans to be listed
         on the NYSE; and (5) such consents, approvals, orders or autho-
         rizations the failure of which to be made or obtained
         individually or in the aggregate would not (x) have a material
         adverse effect on CUC or (y) reasonably be expected to impair
         the ability of CUC to perform its obligations under this
         Agreement.

                   (e)  SEC Documents; Undisclosed Liabilities. CUC has
         filed all required registration statements, prospectuses,
         reports, schedules, forms, statements and








                                       -30-







         other documents (including exhibits and all other information
         incorporated therein) with the SEC since December 31, 1994 (the
         "CUC SEC Documents").  As of their respective dates, the CUC
         SEC Documents complied in all material respects with the
         requirements of the Securities Act or the Exchange Act, as the
         case may be, and the rules and regulations of the SEC
         promulgated thereunder applicable to such CUC SEC Documents,
         and none of the CUC SEC Documents when filed contained any
         untrue statement of a material fact or omitted to state a
         material fact required to be stated therein or necessary in
         order to make the statements therein, in light of the
         circumstances under which they were made, not misleading.  The
         financial statements of CUC included in the CUC SEC Documents
         comply as to form, as of their respective dates of filing with
         the SEC, in all material respects with applicable accounting
         requirements and the published rules and regulations of the SEC
         with respect thereto, have been prepared in accordance with
         GAAP (except, in the case of unaudited statements, as permitted
         by Form 10-Q of the SEC) applied on a consistent basis during
         the periods involved (except as may be indicated in the notes
         thereto) and fairly present the consolidated financial position
         of CUC and its consolidated subsidiaries as of the dates
         thereof and the consolidated results of their operations and
         cash flows for the periods then ended (subject, in the case of
         unaudited statements, to normal year-end audit adjustments and
         except that, in the case of financial statements included
         therein which were later restated to account for one or more
         business combinations accounted for as poolings-of-interest,
         such original financial statements do not reflect such
         restatements). Except (i) as reflected in such financial
         statements or in the notes thereto or (ii) for liabilities
         incurred in connection with this Agreement or the transactions
         contemplated hereby, neither CUC nor any of its subsidiaries
         has any liabilities or obligations of any nature which,
         individually or in the aggregate, would have a material adverse
         effect on CUC.

                   (f)  Information Supplied.  None of the information
         supplied or to be supplied by CUC specifically for inclusion or
         incorporation by reference in (i) the Form S-4 will, at the
         time the Form S-4 becomes effective under the Securities Act,
         contain any untrue statement of a material fact or omit to
         state any material fact required to be stated therein or
         necessary to make the








                                       -31-







         statements therein not misleading or (ii) the Joint Proxy
         Statement will, at the date it is first mailed to CUC's
         stockholders or at the time of the CUC Stockholders Meeting,
         contain any untrue statement of a material fact or omit to
         state any material fact required to be stated therein or
         necessary in order to make the statements therein, in light of
         the circumstances under which they are made, not misleading.
         The Form S-4 and the Joint Proxy Statement will comply as to
         form in all material respects with the requirements of the
         Securities Act and the Exchange Act and the rules and
         regulations thereunder, except that no representation or
         warranty is made by CUC with respect to statements made or
         incorporated by reference therein based on information supplied
         by HFS specifically for inclusion or incorporation by reference
         in the Form S-4 or the Joint Proxy Statement.

                   (g)  Absence of Certain Changes or Events. Except for
         liabilities incurred in connection with this Agreement or the
         transactions contemplated hereby, and except as permitted by
         Section 4.1(b), since January 31, 1997, CUC and its
         subsidiaries have conducted their business only in the ordinary
         course or as disclosed in any CUC SEC Document filed since such
         date and prior to the date hereof, and there has not been (i)
         any material adverse change in CUC, (ii) any declaration,
         setting aside or payment of any dividend or other distribution
         (whether in cash, stock or property) with respect to any of
         CUC's capital stock, (iii) any split, combination or reclassi-
         fication of any of CUC's capital stock or any issuance or the
         authorization of any issuance of any other securities in
         respect of, in lieu of or in substitution for shares of CUC's
         capital stock, except for issuances of CUC Common Stock upon
         conversion or redemption of CUC Convertible Securities or the
         exercise of CUC Employee Stock Options, in each case, awarded
         prior to the date hereof in accordance with their present terms
         or issued pursuant to Section 4.1(b), (iv)(A) any granting by
         CUC or any of its subsidiaries to any current or former
         director, executive officer or other key employee of CUC or its
         subsidiaries of any increase in compensation, bonus or other
         benefits, except for normal increases as a result of
         promotions, normal increases of base pay in the ordinary course
         of business or as was required under any employment agreements
         in effect as of January 31, 1997, (B) any granting by CUC or
         any of its subsidiaries to any such current or former director,
         executive officer or key








                                       -32-







         employee of any increase in severance or termination pay, or
         (C) any entry by CUC or any of its subsidiaries into, or any
         amendment of, any employment, deferred compensation consulting,
         severance, termination or indemnification agreement with any
         such current or former director, executive officer or key
         employee, (v) except insofar as may have been disclosed in CUC
         SEC Documents filed and publicly available prior to the date of
         this Agreement (as amended to the date hereof, the "CUC Filed
         SEC Documents") or required by a change in GAAP, any change in
         accounting methods, principles or practices by CUC materially
         affecting its assets, liabilities or business, (vi) except
         insofar as may have been disclosed in the CUC Filed SEC
         Documents, any tax election that individually or in the
         aggregate would have a material adverse effect on CUC or any of
         its tax attributes or any settlement or compromise of any
         material income tax liability or (vii) any action taken by CUC
         or any of the CUC subsidiaries during the period from January
         31, 1997 through the date of this Agreement that, if taken
         during the period from the date of this Agreement through the
         Effective Time would constitute a breach of Section 4.1(b).

                   (h)  Compliance with Applicable Laws; Litigation.
         (i)  CUC, its subsidiaries and employees hold all permits,
         licenses, variances, exemptions, orders, registrations and
         approvals of all Governmental Entities which are required for
         the operation of the businesses of CUC and its subsidiaries
         (the "CUC Permits") except where the failure to have any such
         CUC Permits individually or in the aggregate would not have a
         material adverse effect on CUC. CUC and its subsidiaries are in
         compliance with the terms of the CUC Permits and all applicable
         statutes, laws, ordinances, rules and regulations, except where
         the failure so to comply individually or in the aggregate would
         not have a material adverse effect on CUC.  As of the date of
         this Agreement, except as disclosed in the CUC Filed SEC Docu-
         ments, no action, demand, requirement or investigation by any
         Governmental Entity and no suit, action or proceeding by any
         person, in each case with respect to CUC or any of its
         subsidiaries or any of their respective properties, is pending
         or, to the knowledge of CUC, threatened, other than, in each
         case, those the outcome of which individually or in the
         aggregate would not (A) have a material adverse











                                       -33-







         effect on CUC or (B) reasonably be expected to impair the
         ability of CUC to perform its obligations under this Agreement
         or prevent or materially delay the consummation of any of the
         transactions contemplated by this Agreement.

                   (ii)  Neither CUC nor any CUC subsidiary is subject
         to any outstanding order, injunction or decree which has had
         or, insofar as can be reasonably foreseen, individually or in
         the aggregate will have a material adverse effect on CUC.

                   (i)  Absence of Changes in Benefit Plans.  CUC has
         delivered to HFS true and complete copies of (i) all severance
         and employment agreements of CUC with directors, executive
         officers or key employees, (ii) all severance programs and
         policies of each of CUC and each CUC subsidiary, and (iii) all
         plans or arrangements of CUC and each CUC subsidiary relating
         to its employees which contain change in control provisions.
         Since January 31, 1997, there has not been any adoption or
         amendment in any material respect by CUC or any of its subsid-
         iaries of any collective bargaining agreement or any material
         bonus, pension, profit sharing, deferred compensation,
         incentive compensation, stock ownership, stock purchase, stock
         option, phantom stock, retirement, vacation, severance,
         disability, death benefit, hospitalization, medical or other
         plan, arrangement or understanding providing benefits to any
         current or former employee, officer or director of CUC or any
         of its wholly owned subsidiaries (collectively, the "CUC
         Benefit Plans"), or any material change in any actuarial or
         other assumption used to calculate funding obligations with
         respect to any CUC pension plans, or any material change in the
         manner in which contributions to any CUC pension plans are made
         or the basis on which such contributions are determined.  Since
         January 1, 1996, none of CUC nor any CUC subsidiary has amended
         any CUC Employee Stock Options or any CUC Stock Plans to
         accelerate the vesting of, or release restrictions on, awards
         thereunder, or to provide for such acceleration in the event of
         a change in control.

                   (j)  ERISA Compliance.  (i)  With respect to the CUC
         Benefit Plans, no event has occurred and, to the knowledge of
         CUC, there exists no condition or set of circumstances, in
         connection with which CUC










                                       -34-







         or any of its subsidiaries could be subject to any liability
         that individually or in the aggregate would have a material
         adverse affect on CUC under ERISA, the Code or any other
         applicable law.

                   (ii)  Each CUC Benefit Plan has been administered in
         accordance with its terms, except for any failures so to
         administer any CUC Benefit Plan that individually or in the
         aggregate would not have a material adverse effect on CUC.
         CUC, its subsidiaries and all the CUC Benefit Plans have been
         operated, and are, in compliance with the applicable provisions
         of ERISA, the Code and all other applicable laws and the terms
         of all applicable collective bargaining agreements, except for
         any failures to be in such compliance that individually or in
         the aggregate would not have a material adverse effect on CUC.
         Each CUC Benefit Plan that is intended to be qualified under
         Section 401(a) or 401(k) of the Code has received a favorable
         determination letter from the IRS that it is so qualified and
         each trust established in connection with any CUC Benefit Plan
         that is intended to be exempt from federal income taxation
         under Section 501(a) of the Code has received a determination
         letter from the IRS that such trust is so exempt.  To the
         knowledge of CUC, no fact or event has occurred since the date
         of any determination letter from the IRS which is reasonably
         likely to affect adversely the qualified status of any such CUC
         Benefit Plan or the exempt status of any such trust.

                   (iii)  Neither CUC nor any of its subsidiaries has
         incurred any unsatisfied liability under Title IV of ERISA
         (other than liability for premiums to the Pension Benefit
         Guaranty Corporation arising in the ordinary course).  No CUC
         Benefit Plan has incurred an "accumulated funding deficiency"
         (within the meaning of Section 302 of ERISA or Section 412 of
         the Code) whether or not waived.  To the knowledge of CUC,
         there are not any facts or circumstances that would materially
         change the funded status of any CUC Benefit Plan that is a
         "defined benefit" plan (as defined in Section 3(35) of ERISA)
         since the date of the most recent actuarial report for such
         plan.  No CUC Benefit Plan is a













                                       -35-







         "multiemployer plan" within the meaning of Section 3(37) of
         ERISA.

                   (iv)  No CUC Benefit Plan is subject to Title IV of
         ERISA.

                   (v)  No CUC Benefit Plan provides medical benefits
         (whether or not insured), with respect to current or former
         employees after retirement or other termination of service
         (other than coverage mandated by applicable law or benefits,
         the full cost of which is borne by the current or former
         employee) other than individual arrangements the amounts of
         which are not material.

                   (vi)  As of the date of this Agreement, neither CUC
         nor any of its subsidiaries is a party to any collective
         bargaining or other labor union contract applicable to persons
         employed by CUC or any of its subsidiaries and no collective
         bargaining agreement is being negotiated by CUC or any of its
         subsidiaries.  As of the date of this Agreement, there is no
         labor dispute, strike or work stoppage against CUC or any of
         its subsidiaries pending or, to the knowledge of CUC,
         threatened which may interfere with the respective business
         activities of CUC or any of its subsidiaries, except where such
         dispute, strike or work stoppage individually or in the
         aggregate would not have a material adverse effect on CUC.  As
         of the date of this Agreement, to the knowledge of CUC, none of
         CUC, any of its subsidiaries or any of their respective
         representatives or employees has committed any material unfair
         labor practice in connection with the operation of the
         respective businesses of CUC or any of its subsidiaries, and
         there is no material charge or complaint against CUC or any of
         its subsidiaries by the National Labor Relations Board or any
         comparable governmental agency pending or threatened in writ-
         ing.

                   (vii)  No employee of CUC will be entitled to any
         material payment, additional benefits or any acceleration of
         the time of payment or vesting of any benefits under any CUC
         Benefit Plan as a result of the transactions contemplated by
         this Agreement (either alone or in conjunction with any











                                       -36-







         other event such as a termination of employment), except that
         CUC Employee Stock Options and shares of restricted stock under
         the 1992 Bonus and Salary Replacement Stock Option Plan, the
         1989 Restricted Stock Plan, the 1994 Directors Stock Option
         Plan, the Sierra 1995 Stock Option Plan, the Papyrus Design
         Group, Inc. 1992 Stock Option Plan and the Knowledge Adventure,
         Inc. 1993 Stock Option Plan will vest as of the Effective Time
         as a result of the Merger.

                   (k)  Taxes.  (i)  Each of CUC and its subsidiaries
         has filed all material tax returns and reports required to be
         filed by it and all such returns and reports are complete and
         correct in all material respects, or requests for extensions to
         file such returns or reports have been timely filed, granted
         and have not expired, except to the extent that such failures
         to file, to be complete or correct or to have extensions
         granted that remain in effect individually or in the aggregate
         would not have a material adverse effect on CUC.  CUC and each
         of its subsidiaries has paid (or CUC has paid on its behalf)
         all taxes shown as due on such returns, and the most recent
         financial statements contained in the CUC Filed SEC Documents
         reflect an adequate reserve in accordance with GAAP for all
         taxes payable by CUC and its subsidiaries for all taxable
         periods and portions thereof accrued through the date of such
         financial statements.

                   (ii)  No deficiencies for any taxes have been
         proposed, asserted or assessed against CUC or any of its
         subsidiaries that are not adequately reserved for, except for
         deficiencies that individually or in the aggregate would not
         have a material adverse effect on CUC.  The federal income tax
         returns of CUC and each of its subsidiaries consolidated in
         such returns for tax years through 1989 have closed by virtue
         of the applicable statute of limitations.

                   (iii)  Neither CUC nor any of its subsidiaries has
         taken any action or knows of any fact, agreement, plan or other
         circumstance that is reasonably likely to prevent the Merger
         from qualifying













                                       -37-







         as a reorganization within the meaning of Section 368(a) of the
         Code.

                   (l)  Voting Requirements.  The affirmative vote at
         the CUC Stockholders Meeting (the "CUC Stockholder Approval")
         of (i) the holders of a majority of all outstanding shares of
         CUC Common Stock is the only vote of the holders of any class
         or series of CUC's capital stock necessary to approve and adopt
         this Agreement and the transactions contemplated hereby,
         including the Merger, the issuance of the CUC Common Stock
         pursuant to the Merger and the Certificate Amendment, and (ii)
         the holders of a majority of all shares of CUC Common Stock
         casting votes is the only vote of the holders of any class or
         series of CUC's capital stock necessary to approve (A) in
         accordance with the applicable rules of the NYSE, the,issuance
         of CUC Common Stock pursuant to the Merger, and (B) the New CUC
         Stock Plan.

                   (m)  State Takeover Statutes; Certificate of
         Incorporation.  The Board of Directors of CUC (including the
         Disinterested Directors thereof (as defined in Article 10 of
         CUC's Certificate of Incorporation)) has unanimously approved
         this Agreement, the transactions contemplated hereby, the
         assumption of the Adjusted Options, the issuance of the options
         to purchase shares of CUC Common Stock granted pursuant to
         Section 5.17 and the issuance of the shares of CUC Common Stock
         upon exercise of such Adjusted Options and other options and,
         assuming the accuracy of HFS's representation and warranty con-
         tained in Section 3.1(q), such approval constitutes approval of
         the Merger and the other transactions contemplated hereby by
         the CUC Board of Directors under the provisions of Section 203
         of the DGCL and constitutes approval of the Merger, the other
         transactions contemplated hereby, the assumption of the
         Adjusted Options, the issuance of the options to purchase
         shares of CUC Common Stock granted pursuant to Section 5.17 and
         the issuance of the shares of CUC Common Stock upon exercise of
         the Adjusted Options and other options under the provisions of
         CUC's Certificate of Incorporation such that Section 203 and
         the provision of Section 10 of CUC's Certificate of
         Incorporation do not apply to this Agreement, the transactions
         contemplated hereby, the assumption of the Adjusted Options,
         the issuance of the options to purchase shares of CUC Common
         Stock granted pursuant to Section 5.17 and the issuance of the
         shares of CUC








                                       -38-







         Common Stock upon exercise of the Adjusted Options and other
         options.  To the knowledge of CUC, no state takeover statute
         other than Section 203 of the DGCL (which has been rendered
         inapplicable) is applicable to the Merger or the other
         transactions contemplated hereby.

                   (n)  Accounting Matters.  To its knowledge, neither
         CUC nor any of its affiliates (as such term is used in Section
         5.11) has taken or agreed to take any action that would prevent
         the business combination to be effected by the Merger from
         being accounted for as a pooling of interests and CUC has no
         reason to believe that the Merger will not qualify for "pooling
         of interest" accounting.

                   (o)  Brokers.  No broker, investment banker,
         financial advisor or other person, other than Goldman, Sachs &
         Co. ("Goldman Sachs"), the fees and expenses of which will be
         paid by CUC, is entitled to any broker's, finder's, financial
         advisor's or other similar fee or commission in connection with
         the transactions contemplated by this Agreement based upon
         arrangements made by or on behalf of CUC.  CUC has furnished to
         HFS true and complete copies of all agreements under which any
         such fees or expenses are payable and all indemnification and
         other agreements related to the engagement of the persons to
         whom such fees are payable.

                   (p)  Opinion of Financial Advisor.  CUC has received
         the opinion of Goldman Sachs, dated the date of this Agreement,
         to the effect that, as of such date, the Exchange Ratio for the
         conversion of HFS Common Stock into CUC Common Stock is fair to
         CUC, a signed copy of which opinion has been delivered to HFS,
         it being understood and agreed by HFS that such opinion is for
         the benefit of the Board of Directors of CUC and may not be
         relied upon by HFS, its affiliates or any of their respective
         stockholders.

                   (q)  Ownership of HFS Common Stock.  As of the date
         hereof, neither CUC nor, to its knowledge without independent
         investigation, any of its affiliates, (i) beneficially owns (as
         defined in Rule 13d-3 under the Exchange Act), directly or
         indirectly, or (ii) is party to any agreement, arrangement or
         understanding for the purpose of acquiring, holding, voting or
         disposing of, in each case, shares of capital stock of HFS.









                                       -39-







                   (r)  Intellectual Property.  CUC and its subsidiaries
         own or have a valid license to use all trademarks, service
         marks, trade names, patents and copyrights (including any
         registrations or applications for registration of any of the
         foregoing) (collectively, the "CUC Intellectual Property")
         necessary to carry on its business substantially as currently
         conducted, except for such CUC Intellectual Property the
         failure of which to own or validly license individually or in
         the aggregate would not have a material adverse effect on CUC.
         Neither CUC nor any such subsidiary has received any notice of
         infringement of or conflict with, and, to CUC's knowledge,
         there are no infringements of or conflicts (i) with the rights
         of others with respect to the use of, or (ii) by others with
         respect to, any CUC Intellectual Property that individually or
         in the aggregate, in either such case, would have a material
         adverse effect on CUC.

                   (s)  Certain Contracts.  Except as set forth in the
         CUC Filed SEC Documents, neither CUC nor any of its
         subsidiaries is a party to or bound by (i) any "material
         contract" (as such term is defined in item 601(b)(10) of
         Regulation S-K of the SEC), (ii) any non-competition agreement
         or any other agreement or obligation which purports to limit in
         any material respect the manner in which, or the localities in
         which, all or any material portion of the business of CUC and
         its subsidiaries (including HFS and its subsidiaries, assuming
         the Merger had taken place), taken as a whole, is or would be
         conducted, or (iii) any contract or other agreement which would
         prohibit or materially delay the consummation of the Merger or
         any of the transactions contemplated by this Agreement (all
         contracts of the type described in clauses (i) and (ii) being
         referred to herein as "CUC Material Contracts").  Each CUC
         Material Contract is valid and binding on CUC (or, to the
         extent a CUC subsidiary is a party, such subsidiary) and is in
         full force and effect, and CUC and each CUC subsidiary have in
         all material respects performed all obligations required to be
         performed by them to date under each CUC Material Contract,
         except where such noncompliance, individually or in the aggre-
         gate, would not have a material adverse effect on CUC. Neither
         CUC nor any CUC subsidiary knows of, or has received notice of,
         any violation or default under (nor, to the knowledge of CUC,
         does there exist any condition which with the passage of time
         or the giving of notice or









                                       -40-







         both would result in such a violation or default under) any CUC
         Material Contract.


                                    ARTICLE IV

                    COVENANTS RELATING TO CONDUCT OF BUSINESS

                   SECTION 4.1.  Conduct of Business.  (a)  Conduct of
         Business by HFS.  Except as set forth in Section 4.1(a) of the
         HFS Disclosure Schedule, as otherwise expressly contemplated by
         this Agreement or as consented to by CUC in writing, such
         consent not to be unreasonably withheld or delayed, during the
         period from the date of this Agreement to the Effective Time,
         HFS shall, and shall cause its subsidiaries to, carry on their
         respective businesses in the ordinary course consistent with
         past practice and in compliance in all material respects with
         all applicable laws and regulations and, to the extent
         consistent therewith, use all reasonable efforts to preserve
         intact their current business organizations, use reasonable
         efforts to keep available the services of their current
         officers and other key employees and preserve their
         relationships with those persons having business dealings with
         them to the end that their goodwill and ongoing businesses
         shall be unimpaired at the Effective Time.  Without limiting
         the generality of the foregoing (but subject to the above
         exceptions), during the period from the date of this Agreement
         to the Effective Time, HFS shall not, and shall not permit any
         of its subsidiaries to:

                   (i)  other than dividends and distributions by a
         direct or indirect wholly owned subsidiary of HFS to its
         parent, or by a subsidiary that is partially owned by HFS or
         any of its subsidiaries, provided that HFS or any such
         subsidiary receives or is to receive its proportionate share
         thereof, (x) declare, set aside or pay any dividends on, make
         any other distributions in respect of, or enter into any
         agreement with respect to the voting of, any of its capital
         stock, (y) split, combine or reclassify any of its capital
         stock or issue or authorize the issuance of any other
         securities in respect of, in lieu of or in substitution for
         shares of its capital stock, except for issuances of HFS Common
         Stock upon conversion of HFS Convertible









                                       -41-







         Securities or upon the exercise of HFS Employee Stock Options,
         in each case, outstanding as of the date hereof in accordance
         with their present terms, including cashless exercise, or
         issued pursuant to Section 4.1(a)(ii) or (z) purchase, redeem
         or otherwise acquire any shares of capital stock of HFS or any
         of its subsidiaries or any other securities thereof or any
         rights, warrants or options to acquire any such shares or other
         securities (except, in the case of clause (z), for (A) the
         repurchase of up to 30,000 shares of HFS Common Stock as long
         as such repurchases are made after consultation with CUC and in
         compliance with Section 5.15 and (B) the deemed acceptance of
         shares upon cashless exercise of HFS Employee Stock Options, or
         in connection with withholding obligations relating thereto);

                   (ii)  issue, deliver, sell, pledge or otherwise
         encumber or subject to any Lien any shares of its capital
         stock, any other voting securities or any securities
         convertible into, or any rights, warrants or options to
         acquire, any such shares, voting securities or convertible
         securities (other than (x) the issuance of HFS capital stock or
         warrants to purchase HFS capital stock in connection with any
         acquisition permitted by Section 4.1(a)(iv) and in compliance
         with Section 5.15, (y) the issuance of HFS Common Stock upon
         conversion of HFS Convertible Securities in accordance with
         their present terms at the option of the holders thereof, and
         (z) the issuance of HFS Common Stock upon the exercise of HFS
         Employee Stock Options, in each case, outstanding as of the
         date hereof in accordance with their present terms or the
         issuance of HFS Employee Stock Options (and shares of HFS
         Common Stock upon the exercise thereof) granted after the date
         hereof in the ordinary course of business consistent with past
         practice (1) for new employees (so long as such additional
         amount of HFS Common Stock subject to HFS Employee Stock
         Options issued to new employees does not exceed 416,130 shares
         of HFS Common Stock in the aggregate) or (2) in connection with
         employee promotions;

                   (iii)  amend its certificate of incorporation, by-
         laws or other comparable organizational documents;













                                       -42-







                   (iv)  acquire or agree to acquire by merging or
         consolidating with, or by purchasing a substantial portion of
         the assets of, or by any other manner, any business or any
         person, except for acquisitions within the scope of or related
         to HFS's or CUC's existing businesses in which the aggregate
         consideration is less than $1.5 billion in any single
         acquisition or series of related acquisitions and less than
         $2.0 billion in the aggregate for all such acquisitions, in
         each case which would not materially delay or impair the
         ability of HFS to perform its obligations under this Agreement
         and which is reasonably expected to be accretive to HFS's
         earnings within 12 months following consummation (for purposes
         of this Section 4.1(a)(iv), "aggregate consideration" shall
         equal the sum of (A)(1) the amount of cash paid, and (2) the
         value of any shares of HFS Common Stock (valued at the closing
         price of the HFS Common Stock on the NYSE on the day prior to
         announcement of such acquisition) delivered, and (3) the fair
         market value of any non-cash or non-HFS Common Stock
         consideration (as determined by the HFS Board of Directors in
         good faith as of the day prior to announcement of such
         acquisition) delivered to the seller or its security holders in
         connection with such acquisition, and (B) the amount of
         liabilities directly or indirectly assumed by HFS or its
         subsidiaries or retired or defeased in connection with such
         acquisition, including contingent liabilities to the extent
         they can be estimated by the HFS Board of Directors in good
         faith as of the day prior to the announcement of such
         acquisition);

                   (v)  subject to compliance with Section 5.15, sell,
         lease, license, mortgage or otherwise encumber or subject to
         any Lien or otherwise dispose of any of its properties or
         assets (including securitizations), other than (A) in the
         ordinary course of business consistent with past practice or
         (B) up to $50 million of such assets, in the aggregate;

                   (vi)  take any action that would cause the
         representations and warranties set forth in Section 3.1(g)
         (with each reference therein to "ordinary course of business"
         being deemed for purposes of this Section 4.1(a)(vi) to be
         immediate-











                                       -43-







         ly followed by "consistent with past practice") to no longer be
         true and correct;

                   (vii)  incur any indebtedness for borrowed money or
         issue any debt securities or assume, guarantee or endorse, or
         otherwise as an accommodation become responsible for the
         obligations of any person for borrowed money, except for
         indebtedness which does not cause a change in the ratings of
         HFS's rated debt securities by Standard & Poor's Ratings
         Services and by Moody's Investor Service, Inc. from those in
         effect as of the date hereof; or

                   (viii)  authorize, or commit or agree to take, any of
         the foregoing actions;

         provided that the limitations set forth in this Section 4.1(a)
         (other than clause (iii)) shall not apply to any transaction
         between HFS and any wholly owned subsidiary or between any
         wholly owned subsidiaries of HFS.

                   (b)  Conduct of Business by CUC.  Except as set forth
         in Section 4.1(b) of the CUC Disclosure Schedule, as otherwise
         expressly contemplated by this Agreement or as consented to by
         HFS in writing, such consent not to be unreasonably withheld or
         delayed, during the period from the date of this Agreement to
         the Effective Time, CUC shall, and shall cause its subsidiaries
         to, carry on their respective businesses in the ordinary course
         consistent with past practice and in compliance in all material
         respects with all applicable laws and regulations and, to the
         extent consistent therewith, use all reasonable efforts to
         preserve intact their current business organizations, use
         reasonable efforts to keep available the services of their
         current officers and other key employees and preserve their
         relationships with those persons having business dealings with
         them to the end that their goodwill and ongoing businesses
         shall be unimpaired at the Effective Time.  Without limiting
         the generality of the foregoing (but subject to the above
         exceptions), during the period from the date of this Agreement
         to the Effective Time, CUC shall not, and shall not permit any
         of its subsidiaries to:

                   (i)  other than dividends and distributions by a
         direct or indirect wholly owned subsidiary of CUC to its
         parent, or by a subsidiary that








                                       -44-







         is partially owned by CUC or any of its subsidiaries, provided
         that CUC or any such subsidiary receives or is to receive its
         proportionate share thereof, (x) declare, set aside or pay any
         dividends on, make any other distributions in respect of, or
         enter into any agreement with respect to the voting of, any of
         its capital stock, (y) split, combine or reclassify any of its
         capital stock or issue or authorize the issuance of any other
         securities in respect of, in lieu of or in substitution for
         shares of its capital stock, except for issuances of CUC Common
         Stock upon conversion or redemption of CUC Convertible
         Securities or upon the exercise of CUC Employee Stock Options,
         in each case, outstanding as of the date hereof in accordance
         with their present terms, including cashless exercise, or
         issued pursuant to Section 4.1(b)(ii) or (z) purchase, redeem
         or otherwise acquire any shares of capital stock of CUC or any
         of its subsidiaries or any other securities thereof or any
         rights, warrants or options to acquire any such shares or other
         securities (except, in the case of clause (z), for (A) the
         repurchase of up to 30,000 shares of CUC Common Stock as long
         as such repurchases are made after consultation with HFS and in
         compliance with Section 5.15 and (B) the deemed acceptance of
         shares upon cashless exercise of CUC Employee Stock Options, or
         in connection with withholding obligations relating thereto);

                   (ii)  issue, deliver, sell, pledge or otherwise
         encumber or subject to any Lien any shares of its capital
         stock, any other voting securities or any securities
         convertible into, or any rights, warrants or options to
         acquire, any such shares, voting securities or convertible
         securities (other than (x) the issuance of CUC capital stock or
         warrants to acquire CUC capital stock in connection with any
         acquisition permitted by Section 4.1(b)(iv) and in compliance
         with Section 5.15, (y) the issuance of CUC Common Stock upon
         conversion or redemption of CUC Convertible Securities in
         accordance with their present terms at the option of the hold-
         ers thereof, and (z) the issuance of CUC Common Stock upon the
         exercise of CUC Employee Stock Options, in each case,
         outstanding as of the date hereof in accordance with their
         present terms or the issuance of CUC Employee Stock Options
         (and shares












                                       -45-







         of CUC Common Stock upon the exercise thereof) granted after
         the date hereof in the ordinary course of business consistent
         with past practice (1) for new employees (so long as such
         additional amount of CUC Common Stock subject to CUC Employee
         Stock Options issued to new employees does not exceed 1,000,000
         shares of CUC Common Stock in the aggregate) or (2) in
         connection with employee promotions;

                   (iii)  except as contemplated hereby, amend its
         certificate of incorporation, by-laws or other comparable
         organizational documents;

                   (iv)  acquire or agree to acquire by merging or
         consolidating with, or by purchasing a substantial portion of
         the assets of, or by any other manner, any business or any
         person, except for acquisitions within the scope of or related
         to CUC's or HFS's existing businesses in which the aggregate
         consideration is less than $1.5 billion in any single
         acquisition or series of related acquisitions and less than
         $2.0 billion in the aggregate for all such acquisitions, in
         each case which would not materially delay or impair the
         ability of CUC to perform its obligations under this Agreement
         and which is reasonably expected to be accretive to CUC's
         earnings within 12 months following consummation (for purposes
         of this Section 4.1(b)(iv), "aggregate consideration" shall
         equal the sum of (A)(1) the amount of cash paid, and (2) the
         value of any shares of CUC Common Stock (valued at the closing
         price of the CUC Common Stock on the NYSE on the day prior to
         announcement of such acquisition) delivered, and (3) the fair
         market value of any non-cash or non-CUC Common Stock
         consideration (as determined by the CUC Board of Directors in
         good faith as of the day prior to announcement of such
         acquisition) delivered to the seller or its security holders in
         connection with such acquisition, and (B) the amount of
         liabilities directly or indirectly assumed by CUC or its
         subsidiaries or retired or defeased in connection with such
         acquisition, including contingent liabilities to the extent
         they can be estimated by the CUC Board of Directors in good
         faith as of the day prior to the announcement of such
         acquisition);












                                       -46-







                   (v)  subject to compliance with Section 5.15, sell,
         lease, license, mortgage or otherwise encumber or subject to
         any Lien or otherwise dispose of any of its properties or
         assets (including securitizations), other than (A) in the
         ordinary course of business consistent with past practice (B)
         up to $50 million of such assets, in the aggregate;

                   (vi)  take any action that would cause the
         representations and warranties set forth in Section 3.2(g)
         (with each reference therein to ordinary course of business,
         being deemed for purposes of this Section 4.1(b)(vi) to be
         immediately followed by "consistent with past practice") to no
         longer be true and correct;

                   (vii)  incur any indebtedness for borrowed money or
         issue any debt securities or assume, guarantee or endorse, or
         otherwise as an accommodation become responsible for the
         obligations of any person for borrowed money, except for
         indebtedness which does not cause a change in the ratings of
         CUC's rated debt securities by Standard & Poor's Ratings
         Services and by Moody's Investor Service, Inc. from those in
         effect as of the date hereof; or

                   (viii)  authorize, or commit or agree to take, any of
         the foregoing actions;

         provided that the limitations set forth in this Section 4.1(b)
         (other than clause (iii)) shall not apply to any transaction
         between CUC and any wholly owned subsidiary or between any
         wholly owned subsidiaries of CUC.

                   (c)  Other Actions.  Except as required by law, HFS
         and CUC shall not, and shall not permit any of their respective
         subsidiaries to, voluntarily take any action that would, or
         that could reasonably be expected to, result in (i) any of the
         representations and warranties of such party set forth in this
         Agreement that are qualified as to materiality becoming untrue
         at the Effective Time, except as provided in the proviso in
         Section 6.2(a) or Section 6.3(a), (ii) any of such
         representations and warranties that are not so qualified
         becoming untrue in any material respect at the Effective Time,
         except as provided in the proviso in Section 6.2(a) or Section 










                                       -47-







         6.3(a), or (iii) any of the conditions to the Merger set forth
         in Article VI not being satisfied.

                   (d)  Advice of Changes.  HFS and CUC shall promptly
         advise the other party orally and in writing to the extent it
         has knowledge of (i) any representation or warranty made by it
         contained in this Agreement that is qualified as to materiality
         becoming untrue or inaccurate in any respect or any such
         representation or warranty that is not so qualified becoming
         untrue or inaccurate in any material respect, (ii) the failure
         by it to comply in any material respect with or satisfy in any
         material respect any covenant, condition or agreement to be
         complied with or satisfied by it under this Agreement and (iii)
         any change or event having, or which, insofar as can reasonably
         be foreseen, could reasonably be expected to have a material
         adverse effect on such party or on the truth of their
         respective representations and warranties or the ability of the
         conditions set forth in Article VI to be satisfied; provided,
         however, that no such notification shall affect the
         representations, warranties, covenants or agreements of the
         parties (or remedies with respect thereto) or the conditions to
         the obligations of the parties under this Agreement.

                   SECTION 4.2  No Solicitation by HFS.  (a)  HFS shall
         not, nor shall it permit any of its subsidiaries to, nor shall
         it authorize or permit any of its directors, officers or
         employees or any investment banker, financial advisor,
         attorney, accountant or other representative retained by it or
         any of its subsidiaries to, directly or indirectly through
         another person, (i) solicit, initiate or encourage (including
         by way of furnishing information), or take any other action
         designed to facilitate, any inquiries or the making of any
         proposal which constitutes any HFS Takeover Proposal (as
         defined below) or (ii) participate in any discussions or
         negotiations regarding any HFS Takeover Proposal; provided,
         however, that if the Board of Directors of HFS determines in
         good faith, based on the advice of outside counsel, that it is
         necessary to do so in order to act in a manner consistent with
         its fiduciary duties to HFS's stockholders under applicable
         law, HFS may, in response to an HFS Superior Proposal (as
         defined in Section 4.2(b)) which was not solicited by it, which
         did not otherwise result from a breach of this Section 4.2(a)
         and which is made or received prior to the obtaining of the HFS
         Stockholder








                                       -48-







         Approval, and subject to providing prior written notice of its
         decision to take such action to CUC and compliance with Section
         4.2(c), (x) furnish information with respect to HFS and its
         subsidiaries to any person making an HFS Superior Proposal
         pursuant to a customary confidentiality agreement (as
         determined by HFS based on the advice of its outside counsel,
         the terms of which are no more favorable to such person than
         the Confidentiality Agreement (as defined herein)) and (y)
         participate in discussions or negotiations regarding such HFS
         Superior Proposal.  For purposes of this Agreement, "HFS
         Takeover Proposal" means any inquiry, proposal or offer from
         any person relating to any direct or indirect acquisition or
         purchase of a business that constitutes 50% or more of the net
         revenues, net income or the assets of HFS and its subsidiaries,
         taken as a whole, or 25% or more of any class of equity
         securities of HFS, any tender offer or exchange offer that if
         consummated would result in any person beneficially owning 25%
         or more of any class of equity securities of HFS, or any
         merger, consolidation, business combination, recapitalization,
         liquidation, dissolution or similar transaction involving HFS
         or the HFS Common Stock (or any HFS subsidiary whose business
         constitutes 50% or more of the net revenues, net income or the
         assets of HFS and its subsidiaries, taken as whole), other than
         the transactions contemplated by this Agreement.

                   (b)  Except as expressly permitted by this Section
         4.2, neither the Board of Directors of HFS nor any committee
         thereof shall (i) withdraw or modify, or propose publicly to
         withdraw or modify, in a manner adverse to CUC, the approval or
         recommendation by such Board of Directors or such committee of
         the Merger or this Agreement, (ii) approve or recommend, or
         propose publicly to approve or recommend, any HFS Takeover Pro-
         posal, or (iii) cause HFS to enter into any letter of intent,
         agreement in principle, acquisition agreement or other similar
         agreement (each, an "HFS Acquisition Agreement") related to any
         HFS Takeover Proposal.  Notwithstanding the foregoing,  at any
         time prior to the obtaining of the HFS Stockholder Approval,
         the Board of Directors of HFS, to the extent that it determines
         in good faith, based upon the advice of outside counsel, that
         it is necessary to do so in order to act in a manner consistent
         with its fiduciary duties to HFS's stockholders under
         applicable law, may (subject to this and the fol-










                                       -49-







         lowing sentences) terminate this Agreement solely in order to
         concurrently enter into an HFS Acquisition Agreement with
         respect to any HFS Superior Proposal, but only at a time that
         is after the fifth business day following CUC's receipt of
         written notice advising CUC that the Board of Directors of HFS
         is prepared to accept an HFS Superior Proposal, specifying the
         material terms and conditions of such HFS Superior Proposal and
         identifying the person making such HFS Superior Proposal.  For
         purposes of this Agreement, an "HFS Superior Proposal" means
         any proposal made by a third party to acquire, directly or
         indirectly, including pursuant to a tender offer, exchange
         offer, merger, consolidation, business combination,
         recapitalization, liquidation, dissolution or similar
         transaction, for consideration consisting of cash and/or
         securities, more than 50% of the combined voting power of the
         shares of HFS Common Stock then outstanding or all or
         substantially all the assets of HFS and otherwise on terms
         which the Board of Directors of HFS determines in its good
         faith judgment (based on the advice of a financial advisor of
         nationally recognized reputation) to be more favorable to HFS's
         stockholders than the Merger and for which financing, to the
         extent required, is then committed or which, in the good faith
         judgment of the Board of Directors of HFS based on the advice
         of its financial advisor, is reasonably capable of being
         obtained by such third party.

                   (c)  In addition to the obligations of HFS set forth
         in paragraphs (a) and (b) of this Section 4.2, HFS shall
         immediately advise CUC orally and in writing of any request for
         information or of any HFS Takeover Proposal, the material terms
         and conditions of such request or HFS Takeover Proposal and the
         identity of the person making such request or HFS Takeover
         Proposal.  HFS will keep CUC reasonably informed of the status
         and details (including amendments or proposed amendments) of
         any such request or HFS Takeover Proposal.

                   (d)  Nothing contained in this Section 4.2 shall
         prohibit HFS from taking and disclosing to its stockholders a
         position contemplated by Rule 14e-2(a) promulgated under the
         Exchange Act or from making any disclosure to HFS's
         stockholders if, in the good faith judgment of the Board of
         Directors of HFS, after consultation with outside counsel,
         failure so to disclose would be inconsistent with its
         obligations under applicable








                                       -50-







         law; provided, however, that neither HFS nor its Board of
         Directors nor any committee thereof shall withdraw or modify,
         or propose publicly to withdraw or modify, its position with
         respect to this Agreement or the Merger or approve or
         recommend, or propose publicly to approve or recommend, an HFS
         Takeover Proposal.

                   SECTION 4.3.  No Solicitation by CUC.  (a)  CUC shall
         not, nor shall it permit any of its subsidiaries to, nor shall
         it authorize or permit any of its directors, officers or
         employees or any investment banker, financial advisor,
         attorney, accountant or other representative retained by it or
         any of its subsidiaries to, directly or indirectly through
         another person, (i) solicit, initiate or encourage (including
         by way of furnishing information), or take any other action
         designed to facilitate, any inquiries or the making of any
         proposal which constitutes any CUC Takeover Proposal (as
         defined below) or (ii) participate in any discussions or
         negotiations regarding any CUC Takeover Proposal; provided,
         however, that if the Board of Directors of CUC determines in
         good faith, based on the advice of outside counsel, that it is
         necessary to do so in order to act in a manner consistent with
         its fiduciary duties to CUC's stockholders under applicable
         law, CUC may, in response to a CUC Superior Proposal (as
         defined in Section 4.3(b)) which was not solicited by it, which
         did not otherwise result from a breach of this Section 4.3(a)
         and which is made or received prior to the obtaining of the CUC
         Stockholder Approval, and subject to providing prior written
         notice of its decision to take such action to HFS and
         compliance with Section 4.3(c) (x) furnish information with
         respect to CUC and its subsidiaries to any person making a CUC
         Superior Proposal pursuant to a customary confidentiality
         agreement (as determined by CUC based on the advice of its
         outside counsel, the terms of which are no more favorable to
         such person than the Confidentiality Agreement) and (y)
         participate in discussions or negotiations regarding such CUC
         Superior Proposal.  For purposes of this Agreement, "CUC
         Takeover Proposal" means any inquiry, proposal or offer from
         any person relating to any direct or indirect acquisition or
         purchase of a business that constitutes 50% or more of the net
         revenues, net income or the assets of CUC and its subsidiaries,
         taken as a whole, or 25% or more of any class of equity securi-
         ties of CUC, any tender offer or exchange offer that if
         consummated would result in any person beneficially








                                       -51-







         owning 25% or more of any class of equity securities of CUC, or
         any merger, consolidation, business combination,
         recapitalization, liquidation, dissolution or similar
         transaction involving CUC or the CUC Common Stock (or any CUC
         subsidiary whose business constitutes 50% or more of the net
         revenues, net income or the assets of CUC and its subsidiaries,
         taken as a whole), other than the transactions contemplated by
         this Agreement.

                   (b)  Except as expressly permitted by this Section
         4.3, neither the Board of Directors of CUC nor any committee
         thereof shall (i) withdraw or modify, or propose publicly to
         withdraw or modify, in a manner adverse to HFS, the approval or
         recommendation by such Board of Directors or such committee of
         the Merger, this Agreement or the issuance of CUC Common Stock
         in connection with the Merger, (ii) approve or recommend, or
         propose publicly to approve or recommend, any CUC Takeover
         Proposal, or (iii) cause CUC to enter into any letter of
         intent, agreement in principle, acquisition agreement or other
         similar agreement (each, a "CUC Acquisition Agreement") related
         to any CUC Takeover Proposal. Notwithstanding the foregoing, at
         any time prior to the obtaining of the CUC Stockholder
         Approval, the Board of Directors of CUC, to the extent that it
         determines in good faith, based upon the advice of outside
         counsel, that it is necessary to do so in order to act in a
         manner consistent with its fiduciary duties to CUC's stockhold-
         ers under applicable law, may (subject to this and the
         following sentences) terminate this Agreement solely in order
         to concurrently enter into any CUC Acquisition Agreement with
         respect to any CUC Superior Proposal, but only at a time that
         is after the fifth business day following HFS's receipt of
         written notice advising HFS that the Board of Directors of CUC
         is prepared to accept a CUC Superior Proposal, specifying the
         material terms and conditions of such CUC Superior Proposal and
         identifying the person making such CUC Superior Proposal.  For
         purposes of this Agreement, a "CUC Superior Proposal" means any
         proposal made by a third party to acquire, directly or
         indirectly, including pursuant to a tender offer, exchange
         offer, merger, consolidation, business combination,
         recapitalization, liquidation, dissolution or similar
         transaction, for consideration consisting of cash and/or
         securities, more than 50% of the combined voting power of the
         shares of CUC Common Stock then outstanding or all or
         substantially all the assets of CUC








                                       -52-







         and otherwise on terms which the Board of Directors of CUC
         determines in its good faith judgment (based on the advice of a
         financial advisor of nationally recognized reputation) to be
         more favorable to CUC's stockholders than the Merger and for
         which financing, to the extent required, is then committed or
         which, in the good faith judgment of the Board of Directors of
         CUC based on the advice of its financial advisor, is reasonably
         capable of being obtained by such third party.

                   (c)  In addition to the obligations of CUC set forth
         in paragraphs (a) and (b) of this Section 4.3, CUC shall
         immediately advise HFS orally and in writing of any request for
         information or of any CUC Takeover Proposal, the material terms
         and conditions of such request or CUC Takeover Proposal and the
         identity of the person making such request or CUC Takeover
         Proposal.  CUC will keep HFS reasonably informed of the status
         and details (including amendments or proposed amendments) of
         any such request or CUC Takeover Proposal.

                   (d)  Nothing contained in this Section 4.3 shall
         prohibit CUC from taking and disclosing to its stockholders a
         position contemplated by Rule 14e-2(a) promulgated under the
         Exchange Act or from making any disclosure to CUC's
         stockholders if, in the good faith judgment of the Board of
         Directors of CUC, after consultation with outside counsel,
         failure so to disclose would be inconsistent with its
         obligations under applicable law; provided, however, that
         neither CUC nor its Board of Directors nor any committee
         thereof shall withdraw or modify, or propose publicly to
         withdraw or modify, its position with respect to this
         Agreement, the Merger, the issuance of CUC Common Stock in
         connection with the Merger, or approve or recommend, or propose
         publicly to approve or recommend, a CUC Takeover Proposal.



















                                       -53-







                                    ARTICLE V

                              ADDITIONAL AGREEMENTS

                   SECTION 5.1.  Preparation of the Form S-4 and the
         Joint Proxy Statement; Stockholders Meetings.  (a)  As soon as
         practicable following the date of this Agreement, HFS and CUC
         shall prepare and file with the SEC the Joint Proxy Statement
         and CUC shall prepare and file with the SEC the Form S-4, in
         which the Joint Proxy Statement will be included as a
         prospectus.  Each of HFS and CUC shall use best efforts to have
         the Form S-4 declared effective under the Securities Act as
         promptly as practicable after such filing.  HFS will use all
         best efforts to cause the Joint Proxy Statement to be mailed to
         HFS's stockholders, and CUC will use all best efforts to cause
         the Joint Proxy Statement to be mailed to CUC's stockholders,
         in each case as promptly as practicable after the Form S-4 is
         declared effective under the Securities Act.  CUC shall also
         take any action (other than qualifying to do business in any
         jurisdiction in which it is not now so qualified or to file a
         general consent to service of process) required to be taken
         under any applicable state securities laws in connection with
         the issuance of CUC Common Stock in the Merger and the approval
         of the Certificate Amendment and HFS shall furnish all informa-
         tion concerning HFS and the holders of HFS Common Stock as may
         be reasonably requested in connection with any such action.  No
         filing of, or amendment or supplement to, the Form S-4 or the
         Joint Proxy Statement will be made by CUC without providing HFS
         the opportunity to review and comment thereon.  CUC will advise
         HFS, promptly after it receives notice thereof, of the time
         when the Form S-4 has become effective or any supplement or
         amendment has been filed, the issuance of any stop order, the
         suspension of the qualification of the CUC Common Stock
         issuable in connection with the Merger for offering or sale in
         any jurisdiction, or any request by the SEC for amendment of
         the Joint Proxy Statement or the Form S-4 or comments thereon
         and responses thereto or requests by the SEC for additional
         information.  If at any time prior to the Effective Time any
         information relating to HFS or CUC, or any of their respective
         affiliates, officers or directors, should be discovered by HFS
         or CUC which should be set forth in an amendment or supplement
         to any of the Form S-4 or the Joint Proxy Statement, so that
         any of such documents would not include any misstatement of a









                                       -54-







         material fact or omit to state any material fact necessary to
         make the statements therein, in light of the circumstances
         under which they were made, not misleading, the party which
         discovers such information shall promptly notify the other
         parties hereto and an appropriate amendment or supplement
         describing such information shall be promptly filed with the
         SEC and, to the extent required by law, disseminated to the
         stockholders of HFS and CUC.

                   (b)  HFS shall, as promptly as practicable after the
         Form S-4 is declared effective under the Securities Act, duly
         call, give notice of, convene and hold a meeting of its
         stockholders (the "HFS Stockholders Meeting") in accordance
         with the DGCL for the purpose of obtaining the HFS Stockholder
         Approval and, subject to its rights to terminate this Agreement
         pursuant to Section 4.2(b), shall, through its Board of
         Directors, recommend to its stockholders the approval and
         adoption of this Agreement, the Merger, the New CUC Stock Plan
         and the other transactions contemplated hereby.  Without
         limiting the generality of the foregoing but subject to its
         rights to terminate this Agreement pursuant to Section 4.2(b),
         HFS agrees that its obligations pursuant to the first sentence
         of this Section 5.1(b) shall not be affected by the
         commencement, public proposal, public disclosure or
         communication to HFS of any HFS Takeover Proposal.

                   (c)  CUC shall, as promptly as practicable after the
         Form S-4 is declared effective under the Securities Act, duly
         call, give notice of, convene and hold a meeting of its
         stockholders (the "CUC Stockholders Meeting") in accordance
         with the DGCL for the purpose of obtaining the CUC Stockholder
         Approval and, subject to its rights to terminate this Agreement
         pursuant to Section 4.3(b), shall, through its Board of
         Directors, recommend to its stockholders the approval and
         adoption of this Agreement, the Merger, the Certificate
         Amendment, the New CUC Stock Plan and the other transactions
         contemplated hereby.  Without limiting the generality of the
         foregoing but subject to its rights to terminate this Agreement
         pursuant to Section 4.3(b), CUC agrees that its obligations
         pursuant to the first sentence of this Section 5.1(c) shall not
         be affected by the commencement, public proposal, public
         disclosure or communication to CUC of any CUC Takeover
         Proposal.









                                       -55-







                   (d)  CUC and HFS will use best efforts to hold the
         HFS Stockholders Meeting and the CUC Stockholders Meeting on
         the same date and as soon as reasonably practicable after the
         date hereof.

                   SECTION 5.2.  Letters of HFS's Accountants.  (a)  HFS
         shall use best efforts to cause to be delivered to CUC two
         letters from HFS's independent accountants, one dated a date
         within two business days before the date on which the Form S-4
         shall become effective and one dated a date within two business
         days before the Closing Date, each addressed to CUC, in form
         and substance reasonably satisfactory to CUC and customary in
         scope and substance for comfort letters delivered by
         independent public accountants in connection with registration
         statements similar to the Form S-4.

                   (b)  HFS shall use best efforts to cause to be
         delivered to CUC and CUC's accountants a letter from HFS's
         independent accountants addressed to CUC and HFS, dated as of
         the date the Form S-4 is declared effective and as of the
         Closing Date, stating that accounting for the Merger as a
         pooling of interests under Opinion 16 of the Accounting
         Principles Board and applicable SEC rules and regulations is
         appropriate if the Merger is closed and consummated as
         contemplated by this Agreement.

                   SECTION 5.3.  Letters of CUC's Accountants. (a)  CUC
         shall use best efforts to cause to be delivered to HFS two
         letters from CUC's independent accountants, one dated a date
         within two business days before the date on which the Form S-4
         shall become effective and one dated a date within two business
         days before the Closing Date, each addressed to HFS, in form
         and substance reasonably satisfactory to HFS and customary in
         scope and substance for comfort letters delivered by
         independent public accountants in connection with registration
         statements similar to the Form S-4.

                   (b)  CUC shall use best efforts to cause to be
         delivered to HFS and HFS's accountants a letter from CUC's
         independent accountants, addressed to HFS and CUC, dated as of
         the date the Form S-4 is declared effective and as of the
         Closing Date, stating that accounting for the Merger as a
         pooling of interests under Opinion 16 of the Accounting
         Principles Board and applicable SEC rules








                                       -56-







         and regulations is appropriate if the Merger is closed and
         consummated as contemplated by this Agreement.

                   SECTION 5.4.  Access to Information; Confidentiality.
         Subject to the Confidentiality Agreement dated May 9, 1997,
         between CUC and HFS (the "Confidentiality Agreement"), and
         subject to restrictions contained in confidentiality agreements
         to which such party is subject (which such party will use its
         best efforts to have waived) and applicable law, each of HFS
         and CUC shall, and shall cause each of its respective
         subsidiaries to, afford to the other party and to the officers,
         employees, accountants, counsel, financial advisors and other
         representatives of such other party, reasonable access during
         normal business hours during the period prior to the Effective
         Time to all their respective properties, books, contracts,
         commitments, personnel and records and, during such period,
         each of HFS and CUC shall, and shall cause each of its
         respective subsidiaries to, furnish promptly to the other party
         (a) a copy of each report, schedule, registration statement and
         other document filed by it during such period pursuant to the
         requirements of federal or state securities laws and (b) all
         other information concerning its business, properties and
         personnel as such other party may reasonably request.  No
         review pursuant to this Section 5.4 shall affect any
         representation or warranty given by the other party hereto.
         Each of HFS and CUC will hold, and will cause its respective
         officers, employees, accountants, counsel, financial advisors
         and other representatives and affiliates to hold, any nonpublic
         information in accordance with the terms of the Confidentiality
         Agreement.

                   SECTION 5.5.  Best Efforts.  (a)  Upon the terms and
         subject to the conditions set forth in this Agreement, each of
         the parties agrees to use best efforts to take, or cause to be
         taken, all actions, and to do, or cause to be done, and to
         assist and cooperate with the other parties in doing, all
         things necessary, proper or advisable to consummate and make
         effective, in the most expeditious manner practicable, the
         Merger and the other transactions contemplated by this
         Agreement, including (i) the obtaining of all necessary actions
         or nonactions, waivers, consents and approvals from
         Governmental Entities and the making of all necessary
         registrations and filings and the taking of all steps as may be
         necessary to obtain an approval or waiver from, or to avoid an








                                       -57-







         action or proceeding by, any Governmental Entity, (ii) the
         obtaining of all necessary consents, approvals or waivers from
         third parties, (iii) the defending of any lawsuits or other
         legal proceedings, whether judicial or administrative,
         challenging this Agreement or the consummation of the
         transactions contemplated by this Agreement, including seeking
         to have any stay or temporary restraining order entered by any
         court or other Governmental Entity vacated or reversed, and
         (iv) the execution and delivery of any additional instruments
         necessary to consummate the transactions contemplated by, and
         to fully carry out the purposes of, this Agreement.  Nothing
         set forth in this Section 5.5(a) will limit or affect actions
         permitted to be taken pursuant to Sections 4.2 and 4.3.

                   (b)  In connection with and without limiting the
         foregoing, HFS and CUC shall (i) take all action necessary to
         ensure that no state takeover statute or similar statute or
         regulation is or becomes applicable to the Merger, this
         Agreement, or any of the other transactions contemplated by
         this Agreement and (ii) if any state takeover statute or
         similar statute or regulation becomes applicable to the Merger,
         this Agreement, or any other transaction contemplated by this
         Agreement, take all action necessary to ensure that the Merger
         and the other transactions contemplated by this Agreement may
         be consummated as promptly as practicable on the terms
         contemplated by this Agreement and otherwise to minimize the
         effect of such statute or regulation on the Merger and the
         other transactions contemplated by this Agreement.

                   SECTION 5.6.  Stock Options.  (a)  As soon as
         practicable following the date of this Agreement, the Board of
         Directors of HFS (or, if appropriate, any committee
         administering the HFS Stock Plans) shall adopt such resolutions
         or take such other actions as may be required to effect the
         following:

                   (i)  adjust the terms of all outstanding HFS Employee
         Stock Options granted under HFS Stock Plans, whether vested or
         unvested, as necessary to provide that, at the Effective Time,
         each HFS Employee Stock Option outstanding immediately prior to
         the Effective Time shall be adjusted and thereafter represent
         an option to acquire, on the same terms and conditions as were
         applicable under such HFS









                                       -58-







         Employee Stock Option, including vesting as such may be
         accelerated at the Effective Time pursuant to the terms of such
         HFS Employee Stock Options in effect as of the date hereof
         (which include cashless exercise), the same number of shares of
         CUC Common Stock as the holder of such HFS Employee Stock
         Option would have been entitled to receive pursuant to the
         Merger had such holder exercised such HFS Employee Stock Option
         in full immediately prior to the Effective Time, with any
         fractional shares of CUC Common Stock resulting from such
         calculation being rounded to the nearest whole share, at a
         price per share of CUC Common Stock equal to (A) the aggregate
         exercise price for the shares of HFS Common Stock otherwise
         purchasable pursuant to such HFS Employee Stock Option divided
         by (B) the aggregate number of shares of CUC Common Stock
         deemed purchasable pursuant to such HFS Employee Stock Option,
         rounding the exercise price thus determined down to the nearest
         whole cent (each, as so adjusted, an "Adjusted Option"); and

                   (ii)  take such other actions relating to the HFS
         Stock Plans as HFS and CUC may agree are appropriate to give
         effect to the Merger, including as provided in Section 5.7.

                   (b)  As soon as practicable after the Effective Time,
         CUC shall deliver to the holders of HFS Employee Stock Options
         appropriate notices setting forth such holders' rights pursuant
         to the respective HFS Stock Plans and the agreements evidencing
         the grants of such HFS Employee Stock Options and that such HFS
         Employee Stock Options and agreements shall be assumed by CUC
         and shall continue in effect on the same terms and conditions
         (subject to the adjustments required by this Section 5.6 after
         giving effect to the Merger).

                   (c)  A holder of an Adjusted Option may exercise such
         Adjusted Option in whole or in part in accordance with its
         terms by delivering a properly executed notice of exercise to
         CUC, together with the consideration therefor and the federal
         withholding tax information, if any, required in accordance
         with the related HFS Stock Plan.














                                       -59-







                   (d)  Except as otherwise contemplated by this Section
         5.6 and except to the extent required under the respective
         terms of the HFS Employee Stock Options in effect as of the
         date hereof, all restrictions or limitations on transfer and
         vesting with respect to HFS Employee Stock Options awarded
         under the HFS Stock Plans or any other plan, program or
         arrangement of HFS or any of its subsidiaries, to the extent
         that such restrictions or limitations shall not have already
         lapsed, shall remain in full force and effect with respect to
         such options after giving effect to the Merger and the
         assumption by CUC as set forth above.

                   SECTION 5.7.  HFS Stock Plans and Certain Employee
         Matters.  (a)  At the Effective Time, by virtue of the Merger,
         the HFS Stock Plans shall be assumed by CUC, with the result
         that all obligations of HFS under the HFS Stock Plans,
         including with respect to awards outstanding at the Effective
         Time under each HFS Stock Plan, shall be obligations of CUC
         following the Effective Time.  Prior to the Effective Time, CUC
         shall take all necessary actions (including, if required to
         comply with Section 162(m) or 422 of the Code (and the
         regulations thereunder) or applicable law or rule of the NYSE,
         obtaining the approval of its stockholders at the CUC
         Stockholders Meeting) for the assumption of the HFS Stock
         Plans, including the reservation, issuance and listing of CUC
         Common Stock in a number at least equal to (x) the number of
         shares of CUC Common Stock that will be subject to Adjusted
         Options and (y) the product of the Exchange Ratio and the
         number of shares of HFS Common Stock available for future
         awards under the HFS Stock Plans immediately prior to the
         Effective Time.  No later than the Effective Time, CUC shall
         prepare and file with the SEC a registration statement on Form
         S-8 (or another appropriate form) registering a number of
         shares of CUC Common Stock determined in accordance with the
         preceding sentence and the unrestricted reoffer and resale of
         such shares.  Such registration statement shall be kept effec-
         tive (and the current status of the prospectus or prospectuses
         required thereby shall be maintained) at least for so long as
         Adjusted Options remain outstanding and until such time as the
         shares of CUC Common Stock subject to such Adjusted Options are
         no longer subject to resale restrictions under the Securities
         Act.










                                       -60-







                   (b)  Following the Effective Time, CUC, as the
         Surviving Corporation in the Merger, will honor all obligations
         of HFS or its subsidiaries under employment agreements of HFS
         or its subsidiaries as amended and/or restated as contemplated
         in this Agreement.

                   SECTION 5.8.  Indemnification, Exculpation and
         Insurance.  (a)  CUC agrees to maintain in effect in accordance
         with their terms all rights to indemnification and exculpation
         from liabilities for acts or omissions occurring at or prior to
         the Effective Time now existing in favor of the current or
         former directors or officers of HFS and its subsidiaries as
         provided in their respective certificates of incorporation or
         by-laws (or comparable organizational documents) and any
         indemnification agreements of HFS.  In addition, from and after
         the Effective Time, directors and officers of HFS who become
         directors or officers of CUC will be entitled to the same
         indemnity rights and protections as are afforded to other
         directors and officers of CUC.

                   (b)  In the event that CUC or any of its successors
         or assigns (i) consolidates with or merges into any other
         person and is not the continuing or surviving corporation or
         entity of such consolidation or merger or (ii) transfers or
         conveys all or substantially all of its properties and assets
         to any person, then, and in each such case, proper provision
         will be made so that the successors and assigns of CUC assume
         the obligations set forth in this Section 5.8.

                   (c)  For seven years after the Effective Time, CUC
         shall provide to HFS's current directors and officers liability
         insurance covering acts or omissions occurring prior to the
         Effective Time with respect to those persons who are currently
         covered by HFS's directors' and officers' liability insurance
         policy on terms with respect to such coverage and amount no
         less favorable than those of such policy in effect on the date
         hereof, provided that in no event shall CUC be required to
         expend more than 200% of the current amount expended by HFS to
         maintain such coverage.

                   (d)  The provisions of this Section 5.8 (i) are
         intended to be for the benefit of, and will be enforceable by,
         each indemnified party, his or her heirs and his or her
         representatives and (ii) are in addition to, and








                                       -61-







         not in substitution for, any other rights to indemnification or
         contribution that any such person may have by contract or
         otherwise.

                   SECTION 5.9.  Fees and Expenses.  (a)  Except as
         provided in this Section 5.9, all fees and expenses incurred in
         connection with the Merger, this Agreement, and the
         transactions contemplated by this Agreement shall be paid by
         the party incurring such fees or expenses, whether or not the
         Merger is consummated, except that each of CUC and HFS shall
         bear and pay one-half of the costs and expenses incurred in
         connection with (1) the filing, printing and mailing of the
         Form S-4 and the Joint Proxy Statement (including SEC filing
         fees) and (2) the filings of the pre-merger notification and
         report forms under the HSR Act (including filing fees).

                   (b)  In the event that (i) an HFS Takeover Proposal
         shall have been made known to HFS or any of its subsidiaries or
         has been made directly to its stockholders generally or any
         person shall have publicly announced an intention (whether or
         not conditional) to make an HFS Takeover Proposal and
         thereafter this Agreement is terminated by either CUC or HFS
         pursuant to Section 7.1(b)(i) or (ii), or (ii) this Agreement
         is terminated by HFS pursuant to Section 7.1(f), then HFS shall
         promptly, but in no event later than two days after the date of
         such termination, pay CUC a fee equal to $300 million (the
         "Termination Fee"), payable by wire transfer of same day funds;
         provided, however, that no Termination Fee shall be payable to
         CUC pursuant to clause (i) of this paragraph (b) unless and
         until within 18 months of such termination HFS or any of its
         subsidiaries enters into any HFS Acquisition Agreement or any
         transaction which would be an HFS Takeover Proposal is
         consummated, in which event the Termination Fee shall be
         payable upon the first to occur of such events.  HFS
         acknowledges that the agreements contained in this Section
         5.9(b) are an integral part of the transactions contemplated by
         this Agreement, and that, without these agreements, CUC would
         not enter into this Agreement; accordingly, if HFS fails
         promptly to pay the amount due pursuant to this Section 5.9(b),
         and, in order to obtain such payment, CUC commences a suit
         which results in a judgment against HFS for the fee set forth
         in this Section 5.9(b), HFS shall pay to CUC its costs and
         expenses (including attorneys' fees and expenses) in connection
         with such suit, together with








                                       -62-







         interest on the amount of the fee at the prime rate of Citibank
         N.A. in effect on the date such payment was required to be
         made.

                   (c)  In the event that (i) a CUC Takeover Proposal
         shall have been made known to CUC or any of its subsidiaries or
         has been made directly to its stockholders generally or any
         person shall have publicly announced an intention (whether or
         not conditional) to make a CUC Takeover Proposal and thereafter
         this Agreement is terminated by either CUC or HFS pursuant to
         Section 7.1(b)(i) or (iii), or (ii) this Agreement is
         terminated by CUC pursuant to Section 7.1(d), then CUC shall
         promptly, but in no event later than two days after the date of
         such termination, pay HFS the Termination Fee, payable by wire
         transfer of same day funds; provided, however, that no
         Termination Fee shall be payable to HFS pursuant to clause (i)
         of this paragraph (c) unless and until within 18 months of such
         termination CUC or any of its subsidiaries enters into any CUC
         Acquisition Agreement or any transaction which would be a CUC
         Takeover Proposal is consummated, in which event the
         Termination Fee shall be payable upon the first to occur of
         such events.  CUC acknowledges that the agreements contained in
         this Section 5.9(c) are an integral part of the transactions
         contemplated by this Agreement, and that, without these
         agreements, HFS would not enter into this Agreement;
         accordingly, if CUC fails promptly to pay the amount due
         pursuant to this Section 5.9(c), and, in order to obtain such
         payment, HFS commences a suit which results in a judgment
         against CUC for the fee set forth in this Section 5.9(c), CUC
         shall pay to HFS its costs and expenses (including attorneys'
         fees and expenses) in connection with such suit, together with
         interest on the amount of the fee at the prime rate of Citibank
         N.A. in effect on the date such payment was required to be
         made.

                   SECTION 5.10.  Public Announcements.  CUC and HFS
         will consult with each other before issuing, and provide each
         other the opportunity to review, comment upon and concur with
         and use reasonable efforts to agree on, any press release or
         other public statements with respect to the transactions
         contemplated by this Agreement, including the Merger, and shall
         not issue any such press release or make any such public
         statement prior to such consultation, except as either party
         may determine is required by applicable law, court process or
         by obli-







                                       -63-







         gations pursuant to any listing agreement with any national
         securities exchange.  The parties agree that the initial press
         release to be issued with respect to the transactions
         contemplated by this Agreement shall be in the form heretofore
         agreed to by the parties.

                   SECTION 5.11.  Affiliates.  (a)  As soon as
         practicable after the date hereof, HFS shall deliver to CUC a
         letter identifying all persons who are, at the time this
         Agreement is submitted for adoption by the stockholders of HFS,
         "affiliates" of HFS for purposes of Rule 145 under the
         Securities Act or for purposes of qualifying the Merger for
         pooling of interests accounting treatment under Opinion 16 of
         the Accounting Principles Board and applicable SEC rules and
         regulations, and such list shall be updated as necessary to
         reflect changes from the date hereof.  HFS shall use best
         efforts to cause each person identified on such list to deliver
         to CUC not less than 30 days prior to the Effective Time, a
         written agreement substantially in the form attached as Exhibit
         C hereto.  CUC shall use best efforts to cause all persons who
         are "affiliates" of CUC for purposes of qualifying the Merger
         for pooling of interests accounting treatment under Opinion 16
         of the Accounting Principles Board and applicable SEC rules and
         regulations to deliver to HFS not less than 30 days prior to
         the Effective Time, a written agreement substantially in the
         form of the fourth paragraph of Exhibit C hereto.

                   (b)  CUC shall publish no later than 45 days after
         the end of the first month after the Effective Time in which
         there are at least 30 days of post Merger combined operations
         (which month may be the month in which the Effective Time
         occurs), combined sales and net income figures as contemplated
         by and in accordance with the terms of SEC Accounting Series
         Release No. 135.

                   SECTION 5.12.  NYSE Listing.  CUC shall use best
         efforts to cause the CUC Common Stock issuable under Article
         II, upon exercise of Adjusted Options pursuant to Section 5.6
         and upon exercise of the options to purchase shares of CA
         Common Stock granted pursuant to Section 5.17 and the shares of
         restricted CA Common Stock issued pursuant to Section 5.17 to
         be approved for listing on the NYSE, subject to official notice
         of issuance, as promptly as practicable after the date hereof,
         and in any event prior to the Closing Date.








                                       -64-







                   SECTION 5.13.  Stockholder Litigation.  Each of HFS
         and CUC shall give the other the reasonable opportunity to
         participate in the defense of any stockholder litigation
         against HFS or CUC, as applicable, and its directors relating
         to the transactions contemplated by this Agreement.

                   SECTION 5.14.  Tax Treatment.  Each of CUC and HFS
         shall use best efforts to cause the Merger to qualify as a
         reorganization under the provisions of Section 368 of the Code
         and to obtain the opinions of counsel referred to in Sections
         6.2(c) and 6.3(c).

                   SECTION 5.15  Pooling of Interests.  Each of HFS and
         CUC shall use best efforts to cause the transactions
         contemplated by this Agreement, including the Merger, to be
         accounted for as a pooling of interests under Opinion 16 of the
         Accounting Principles Board and applicable SEC rules and
         regulations, and such accounting treatment to be accepted by
         the SEC, and each of HFS and CUC agrees that it shall take no
         action that would cause such accounting treatment not to be
         obtained.

                   SECTION 5.16.  Standstill Agreements; Confidentiality
         Agreements.  During the period from the date of this Agreement
         through the Effective Time, neither HFS nor CUC shall
         terminate, amend, modify or waive any provision of any
         confidentiality or standstill agreement to which it or any of
         its respective subsidiaries is a party.  During such period,
         HFS or CUC, as the case may be, shall enforce, to the fullest
         extent permitted under applicable law, the provisions of any
         such agreement, including by obtaining injunctions to prevent
         any breaches of such agreements and to enforce specifically the
         terms and provisions thereof in any court of the United States
         of America or of any state having jurisdiction.

                   SECTION 5.17.  Company Officers; Employment
         Contracts; Equity Awards.   (a)  Pursuant to and in accordance
         with the terms hereof and of the amended and/or restated
         employment agreements referred to in Section 5.17(b) (i) at the
         Effective Time and until January 1, 2000, Mr. Forbes shall
         serve as Chairman of the Board of Directors and Chairman of the
         Executive Committee of CUC, and from and after January 1, 2000,
         Mr. Forbes shall be President and Chief Executive Officer of
         CUC but shall not be Chairman of the Board or Chairman of








                                       -65-







         the Executive Committee of CUC, and (ii) at the Effective Time
         and until January 1, 2000, Mr. Silverman shall serve as
         President and Chief Executive Officer of CUC, and from and
         after January 1, 2000, Mr. Silverman shall be Chairman of the
         Board of Directors and Chairman of the Executive Committee of
         CUC but not President and Chief Executive Officer of CUC.  If
         either of such persons is unable or unwilling to hold such
         offices for the period set forth in his employment agreement,
         his successor shall be selected by the Board of Directors of
         CUC in the manner set forth in the Restated By-laws.

                   (b)  At or prior to the Effective Time, CUC agrees to
         enter into the amended and restated employment agreements
         substantially in the forms set forth in Exhibit 5.17 attached
         hereto with the CUC officers identified in Exhibit 5.17, and
         HFS agrees to enter into amendments to and/or restatements of
         the employment agreements substantially in the forms set forth
         in Exhibit 5.17 attached hereto with the HFS officers
         identified in Exhibit 5.17.

                   (c)  At the Effective Time, the officers and key
         employees of the Surviving Corporation, identified in Exhibit
         5.17, will be granted (i) shares of restricted CUC Common Stock
         with an aggregate value of $30 million (based on the Average
         CUC Price), the terms and conditions with respect to which
         shall be no less favorable than the terms and conditions
         applicable to restricted stock held by executive officers of
         CUC as of the date hereof and (ii) options to acquire an
         aggregate of 19,800,000 shares of CUC Common Stock at an
         exercise price per share equal to the market value of a share
         of CUC Common Stock on the date of grant.  All terms and
         conditions applicable to such options shall be as provided in
         the New CUC Stock Plan, except that the terms and conditions
         applicable to the options granted to Mr. Silverman pursuant to
         his amended employment agreement under Section 5.17(b) shall be
         no less favorable to the terms and conditions of outstanding
         options held by Mr. Silverman as of the date hereof.  Stock
         awards granted pursuant to this Section 5.17(c) shall be made
         in such amounts as identified in Exhibit 5.17 for each
         individual.  The aggregate amount of options to be granted
         pursuant to this Section 5.17(c) is in addition to the amount
         of options to acquire shares of CUC Common Stock granted










                                       -66-







         to Mr. Silverman pursuant to his amended employment agreement
         under Section 5.17(b).  

                   (d)  Prior to the Effective Time, each of CUC and HFS
         agree to adopt a stock option and restricted stock plan (the
         "New CUC Stock Plan"), the terms of which shall be mutually
         agreed upon by CUC and HFS, pursuant to which the option and
         restricted share grants described in paragraph (c) of this
         Section 5.17 and in the amended and/or restated employment
         agreements referred to in this 5.17 will be made.  

                   SECTION 5.18.  Post-Merger Operations.  Following the
         Effective Time, the combined company shall maintain a corporate
         office in New York City, CUC shall maintain its principal
         corporate offices in Stamford, Connecticut and HFS shall
         maintain its principal corporate offices in Parsippany, New
         Jersey.

                   SECTION 5.19  Conveyance Taxes.  CUC and HFS shall
         cooperate in the preparation, execution and filing of all
         returns, questionnaires, applications or other documents
         regarding any real property transfer or gains, sales, use,
         transfer, value added, stock transfer and stamp taxes, any
         transfer, recording, registration and other fees or any similar
         taxes which become payable in connection with the transactions
         contemplated by this Agreement that are required or permitted
         to be filed on or before the Effective Time.  CUC shall pay,
         and HFS shall pay, without deduction or withholding from any
         amount payable to the holders of HFS Common Stock, any such
         taxes or fees imposed by any Governmental Entity (and any
         penalties and interest with respect to such taxes and fees),
         which become payable in connection with the transactions
         contemplated by this Agreement, on behalf of their respective
         stockholders.

                   SECTION 5.20.  HFS Convertible Notes.  From and after
         the date hereof and prior to the Effective Time, each of CUC or
         HFS, as applicable, shall take such actions (including entering
         into supplemental indentures) with respect to the notes of HFS
         issued under (i) the Indenture between HFS and Bank of America
         Illinois, dated October 1, 1994, relating to HFS's 4 1/2%
         Convertible Senior Notes due 1999 and (ii) the Indenture
         between HFS and First Trust of Illinois, National Association,
         dated February 28, 1996, relating to HFS's 4 3/4% Convertible








                                       -67-







         Senior Notes due 2003, to implement the provisions of such
         Indentures which provide that such notes shall be convertible
         into shares of CUC Common Stock and not HFS Common Stock from
         and after the Effective Time.

                   SECTION 5.21.  Transition Planning.  Mr. Silverman
         and Mr. Forbes, as Chairmen of HFS and CUC, respectively,
         jointly shall be responsible for coordinating all aspects of
         transition planning and implementation relating to the Merger
         and the other transactions contemplated hereby.  If either such
         person ceases to be Chairman of his respective company for any
         reason, such person's successor as Chairman shall assume his
         predecessor's responsibilities under this Section 5.21.


                                    ARTICLE VI

                               CONDITIONS PRECEDENT

                   SECTION 6.1.  Conditions to Each Party's Obligation
         to Effect the Merger.  The respective obligation of each party
         to effect the Merger is subject to the satisfaction or waiver
         on or prior to the Closing Date of the following conditions:

                   (a)  Stockholder Approvals.  Each of the HFS
         Stockholder Approval and the CUC Stockholder Approval shall
         have been obtained.

                   (b)  HSR Act.  The waiting period (and any extension
         thereof) applicable to the Merger under the HSR Act shall have
         been terminated or shall have expired.

                   (c)  Governmental and Regulatory Approvals. Other
         than the filing provided for under Section 1.3 and filings
         pursuant to the HSR Act (which are addressed in Section
         6.1(b)), all consents, approvals and actions of, filings with
         and notices to any Governmental Entity required of HFS, CUC or
         any of their subsidiaries to consummate the Merger and the
         other transactions contemplated hereby, the failure of which to
         be obtained or taken (i) is reasonably expected to have a
         material adverse effect on the Surviving Corporation and its
         prospective subsidiaries, taken as a whole, or (ii) will result
         in a violation of any laws, shall have been ob-









                                       -68-







         tained, all in form and substance reasonably satisfactory to
         HFS and CUC.

                   (d)  No Injunctions or Restraints.  No judgment,
         order, decree, statute, law, ordinance, rule or regulation,
         entered, enacted, promulgated, enforced or issued by any court
         or other Governmental Entity of competent jurisdiction or other
         legal restraint or prohibition (collectively, "Restraints")
         shall be in effect (i) preventing the consummation of the
         Merger, or (ii) which otherwise is reasonably likely to have a
         material adverse effect on HFS or CUC, as applicable; provided,
         however, that each of the parties shall have used its best
         efforts to prevent the entry of any such Restraints and to
         appeal as promptly as possible any such Restraints that may be
         entered.

                   (e)  Form S-4.  The Form S-4 shall have become
         effective under the Securities Act prior to the mailing of the
         Joint Proxy Statement by each of HFS and CUC to their
         respective stockholders and no stop order or proceedings
         seeking a stop order shall be threatened by the SEC or shall
         have been initiated by the SEC.

                   (f)  NYSE Listing.  The shares of CUC Common Stock
         issuable to HFS's stockholders as contemplated by Article II,
         the shares of CUC Common Stock issuable upon exercise of
         Adjusted Options pursuant to Section 5.6 and upon exercise of
         the options to purchase shares of CUC Common Stock granted
         pursuant to Section 5.17 and the shares of restricted CUC
         Common Stock issued pursuant to Section 5.17 shall have been
         approved for listing on the NYSE, subject to official notice of
         issuance.

                   (g)  Pooling Letters.  CUC and HFS shall have
         received letters from each of HFS's independent accountants and
         CUC's independent accountants, dated as of the date the Form S-
         4 is declared effective and as of the Closing Date, in each
         case addressed to CUC and HFS, stating that accounting for the
         Merger as a pooling of interests under Opinion 16 of the
         Accounting Principles Board and applicable SEC rules and
         regulations is appropriate if the Merger is consummated and
         closed as contemplated by this Agreement.

                   (h)  Corporate Governance.  CUC shall have taken all
         such actions as shall be necessary so that (i)







                                       -69-







         the Certificate Amendment and By-Laws Amendment shall become
         effective not later than the Effective Time; (ii) the
         resolutions set forth as part of Exhibit B shall have been
         adopted, to be effective upon the Effective Time; and (iii) at
         the Effective Time, the composition of the CUC Board of
         Directors and the committees of such Board shall comply with
         the Restated Certificate, the Restated By-laws and Exhibit B
         hereof (assuming HFS has designated the HFS Directors and CUC
         has designated the CUC Directors, in each case as contemplated
         by Exhibit B).

                   SECTION 6.2.  Conditions to Obligations of CUC. The
         obligation of CUC to effect the Merger is further subject to
         satisfaction or waiver of the following conditions:

                   (a)  Representations and Warranties.  The
         representations and warranties of HFS set forth herein shall be
         true and correct both when made and at and as of the Closing
         Date, as if made at and as of such time (except to the extent
         expressly made as of an earlier date, in which case as of such
         date), except where the failure of such representations and
         warranties to be so true and correct (without giving effect to
         any limitation as to "materiality" or "material adverse effect"
         set forth therein) does not have, and is not likely to have,
         individually or in the aggregate, a material adverse effect on
         HFS; provided, that the representations and warranties of HFS
         set forth in Sections 3.1(i), (j)(iii), (j)(iv) and (j)(v) and
         (s) shall nonetheless be deemed true and correct at and as of
         the Closing Date regardless of changes therein caused by an
         acquisition permitted by 4.1(a)(iv) or by the incurrence of
         indebtedness permitted by 4.1(a)(vii), except to the extent
         that such changes have, or could reasonably be expected to
         have, a material adverse effect on HFS.

                   (b)  Performance of Obligations of HFS.  HFS shall
         have performed in all material respects all obligations
         required to be performed by it under this Agreement at or prior
         to the Closing Date.

                   (c)  Tax Opinions.  CUC shall have received from
         Wachtell, Lipton, Rosen & Katz, counsel to CUC, on a date
         immediately prior to the mailing of the Joint Proxy Statement
         and on the Closing Date, opinions, in each case dated as of
         such respective dates, to the effect that:








                                       -70-







         (i) the Merger will constitute a "reorganization" within the
         meaning of Section 368(a) of the Code, and CUC and HFS will
         each be a party to such reorganization within the meaning of
         Section 368(b) of the Code; (ii) no gain or loss will be
         recognized by CUC or HFS as a result of the Merger; (iii) no
         gain or loss will be recognized by the stockholders of HFS upon
         the exchange of their shares of HFS Common Stock solely for
         shares of CUC Common Stock pursuant to the Merger, except with
         respect to cash, if any, received in lieu of fractional shares
         of CUC Common Stock; (iv) the aggregate tax basis of the shares
         of CUC Common Stock received solely in exchange for shares of
         HFS Common Stock pursuant to the Merger (including fractional
         shares of CUC Common Stock for which cash is received) will be
         the same as the aggregate tax basis of the shares of HFS Common
         Stock exchanged therefor; and (v) the holding period for shares
         of CUC Common Stock received in exchange for shares of HFS
         Common Stock pursuant to the Merger will include the holding
         period of the shares of HFS Common Stock exchanged therefor,
         provided such shares of HFS Common Stock were held as capital
         assets by the stockholder at the Effective Time.  In rendering
         such opinions, counsel for CUC shall be entitled to rely upon
         representations of officers of CUC, HFS and stockholders of HFS
         substantially in the form of Exhibits D and E hereto.

                   (d)  No Material Adverse Change.  At any time after
         the date of this Agreement there shall not have occurred any
         material adverse change relating to HFS.

                   SECTION 6.3.  Conditions to Obligations of HFS. The
         obligation of HFS to effect the Merger is further subject to
         satisfaction or waiver of the following conditions:

                   (a)  Representations and Warranties.  The
         representations and warranties of CUC set forth herein shall be
         true and correct both when made and at and as of the Closing
         Date, as if made at and as of such time (except to the extent
         expressly made as of an earlier date, in which case as of such
         date), except where the failure of such representations and
         warranties to be so true and correct (without giving effect to
         any limitation as to "materiality," or "material adverse
         effect" set forth therein) does not have, and is not likely to
         have, individually or in the aggregate, a material adverse










                                       -71-







         effect on CUC; provided, that the representations and
         warranties of CUC set forth in Sections 3.2(i), (j)(iii),
         (j)(iv) and (j)(v) and (s) shall nonetheless be deemed true and
         correct at and as of the Closing Date regardless of changes
         therein caused by an acquisition permitted by 4.1(b)(iv) or by
         the incurrence of indebtedness permitted by 4.1(b)(vii), except
         to the extent that such changes have, or could reasonably be
         expected to have, a material adverse effect on CUC.

                   (b)  Performance of Obligations of CUC.  CUC shall
         have performed in all material respects all obligations
         required to be performed by it under this Agreement at or prior
         to the Closing Date.

                   (c)  Tax Opinions.  HFS shall have received from
         Skadden, Arps, Slate, Meagher & Flom LLP, counsel to HFS, on a
         date immediately prior to the mailing of the Joint Proxy
         Statement and on the Closing Date, opinions, in each case dated
         as of such respective dates, to the effect that: (i) the Merger
         will constitute a "reorganization" within the meaning of
         Section 368(a) of the Code, and CUC and HFS will each be a
         party to such reorganization within the meaning of Section
         368(b) of the Code; (ii) no gain or loss will be recognized by
         CUC or HFS as a result of the Merger; (iii) no gain or loss
         will be recognized by the stockholders of HFS upon the exchange
         of their shares of HFS Common Stock solely for shares of CUC
         Common Stock pursuant to the Merger, except with respect to
         cash, if any, received in lieu of fractional shares of CUC
         Common Stock; (iv) the aggregate tax basis of the shares of CUC
         Common Stock received solely in exchange for shares of HFS
         Common Stock pursuant to the Merger (including fractional
         shares or CUC Common Stock for which cash is received) will be
         the same as the aggregate tax basis of the shares of HFS Common
         Stock exchanged therefor; and (v) the holding period for shares
         of CUC Common Stock received in exchange for shares of HFS
         Common Stock pursuant to the Merger will include the holding
         period of the shares of HFS Common Stock exchanged therefor,
         provided such shares of HFS Common Stock were held as capital
         assets by the stockholder at the Effective Time.  In rendering
         such opinions, counsel for HFS shall be entitled to rely upon
         representations of officers of CUC, HFS and stockholders of HFS
         substantially in the form of Exhibits D and E hereto.










                                       -72-







                   (d)  No Material Adverse Change.  At any time after
         the date of this Agreement there shall not have occurred any
         material adverse change relating to CUC.

                   SECTION 6.4.  Frustration of Closing Conditions.
         Neither CUC nor HFS may rely on the failure of any condition
         set forth in Section 6.1, 6.2 or 6.3, as the case may be, to be
         satisfied if such failure was caused by such party's failure to
         use best efforts to consummate the Merger and the other
         transactions contemplated by this Agreement, as required by and
         subject to Section 5.5.


                                   ARTICLE VII

                        TERMINATION, AMENDMENT AND WAIVER

                   SECTION 7.1.  Termination.  This Agreement may be
         terminated at any time prior to the Effective Time, and (except
         in the case of 7.1(d) or 7.1(f)) whether before or after the
         HFS Stockholder Approval or the CUC Stockholder Approval:

                   (a)  by mutual written consent of CUC and HFS;

                   (b)  by either CUC or HFS:

                   (i)  if the Merger shall not have been consummated by
              December 31, 1997, provided, however, that the right to
              terminate this Agreement pursuant to this Section
              7.1(b)(i) shall not be available to any party whose
              failure to perform any of its obligations under this
              Agreement results in the failure of the Merger to be
              consummated by such time; provided, however, that this
              Agreement may be extended not more than 30 days by either
              party by written notice to the other party if the Merger
              shall not have been consummated as a direct result of CUC
              or HFS having failed to receive all regulatory approvals
              required to be obtained with respect to the Merger.

                   (ii)  if the HFS Stockholder Approval shall not have
              been obtained at an HFS Stockholders











                                       -73-







              Meeting duly convened therefor or at any adjournment or
              postponement thereof;

                   (iii)  if the CUC Stockholder Approval shall not have
              been obtained at a CUC Stockholders Meeting duly convened
              therefor or at any adjournment or postponement thereof; or

                   (iv)  if any Restraint having any of the effects set
              forth in Section 6.1(d) shall be in effect and shall have
              become final and nonappealable; provided, that the party
              seeking to terminate this Agreement pursuant to this
              Section 7.1(b)(iv) shall have used best efforts to prevent
              the entry of and to remove such Restraint;

                   (c)  by CUC, if HFS shall have breached or failed to
         perform in any material respect any of its representations,
         warranties, covenants or other agreements contained in this
         Agreement, which breach or failure to perform (A) would give
         rise to the failure of a condition set forth in Section 6.2(a)
         or (b), and (B) is incapable of being cured by HFS or is not
         cured within 45 days of written notice thereof;

                   (d)  prior to receipt of the CUC Stockholder
         Approval, by CUC in accordance with Section 4.3(b); provided
         that, in order for the termination of this Agreement pursuant
         to this paragraph (d) to be deemed effective, CUC shall have
         complied with all provisions contained in Section 4.3,
         including the notice provisions therein, and with applicable
         requirements, including the payment of the Termination Fee, of
         Section 5.9;

                   (e)  by HFS, if CUC shall have breached or failed to
         perform in any material respect any of its representations,
         warranties, covenants or other agreements contained in this
         Agreement, which breach or failure to perform (A) would give
         rise to the failure of a condition set forth in Section 6.3(a)
         or (b), and (B) is incapable of being cured by CUC or is not
         cured within 45 days of written notice thereof; or

                   (f)  prior to receipt of the HFS Stockholder
         Approval, by HFS in accordance with Section 4.2(b); provided
         that, in order for the termination of this Agreement pursuant
         to this paragraph (f) to be deemed effec-









                                       -74-







         tive, HFS shall have complied with all provisions of Section
         4.2, including the notice provisions therein, and with
         applicable requirements, including the payment of the
         Termination Fee, of Section 5.9.

                   SECTION 7.2.  Effect of Termination.  In the event of
         termination of this Agreement by either HFS or CUC as provided
         in Section 7.1, this Agreement shall forthwith become void and
         have no effect, without any liability or obligation on the part
         of CUC or HFS, other than the provisions of Section 3.1(o),
         Section 3.2(o), the last sentence of Section 5.4, Section 5.9,
         this Section 7.2 and Article VIII, which provisions survive
         such termination, and except to the extent that such termina-
         tion results from the willful and material breach by a party of
         any of its representations, warranties, covenants or agreements
         set forth in this Agreement.

                   SECTION 7.3.  Amendment.  This Agreement may be
         amended by the parties at any time before or after the HFS
         Stockholder Approval or the CUC Stockholder Approval; provided,
         however, that after any such approval, there shall not be made
         any amendment that by law requires further approval by the
         stockholders of HFS or CUC without the further approval of such
         stockholders.  This Agreement may not be amended except by an
         instrument in writing signed on behalf of each of the parties.

                   SECTION 7.4.  Extension; Waiver.  At any time prior
         to the Effective Time, a party may (a) extend the time for the
         performance of any of the obligations or other acts of the
         other parties, (b) waive any inaccuracies in the
         representations and warranties of the other parties contained
         in this Agreement or in any document delivered pursuant to this
         Agreement or (c) subject to the proviso of Section 7.3, waive
         compliance by the other party with any of the agreements or
         conditions contained in this Agreement.  Any agreement on the
         part of a party to any such extension or waiver shall be valid
         only if set forth in an instrument in writing signed on behalf
         of such party.  The failure of any party to this Agreement to
         assert any of its rights under this Agreement or otherwise
         shall not constitute a waiver of such rights.

                   SECTION 7.5.  Procedure for Termination, Amendment,
         Extension or Waiver.  A termination of this Agreement pursuant
         to Section 7.1, an amendment of this Agree-








                                       -75-







         ment pursuant to Section 7.3 or an extension or waiver pursuant
         to Section 7.4 shall, in order to be effective, require, in the
         case of CUC or HFS, action by its Board of Directors or, with
         respect to any amendment to this Agreement, the duly authorized
         committee of its Board of Directors to the extent permitted by
         law.


                                   ARTICLE VIII

                                GENERAL PROVISIONS

                   SECTION 8.1.  Nonsurvival of Representations and
         Warranties.  None of the representations and warranties in this
         Agreement or in any instrument delivered pursuant to this
         Agreement shall survive the Effective Time.  This Section 8.1
         shall not limit any covenant or agreement of the parties which
         by its terms contemplates performance after the Effective Time.

                   SECTION 8.2.  Notices.  All notices, requests,
         claims, demands and other communications under this Agreement
         shall be in writing and shall be deemed given if delivered
         personally, telecopied (which is confirmed) or sent by
         overnight courier (providing proof of delivery) to the parties
         at the following addresses (or at such other address for a
         party as shall be specified by like notice):

                   (a)  if to CUC, to

                   CUC International Inc.
                   707 Summer Street
                   P.O. Box 10049
                   Stamford, Connecticut 06901
                   Telecopy No: (203) 348-4528
                   Attention:  General Counsel

                   with a copy to:

                   Wachtell, Lipton, Rosen & Katz
                   51 West 52 Street
                   New York, New York 10019
                   Telecopy No.: (212) 403-1000
                   Attention:  Patricia Vlahakis









                                       -76-







                   (b)  if to HFS, to

                   HFS Incorporated
                   6 Sylvan Way
                   Parsippany, New Jersey 07054
                   Telecopy No. (201) 428-2280
                   Attention:  General Counsel

                   with a copy to:

                   Skadden, Arps, Slate, Meagher & Flom LLP
                   919 Third Avenue
                   New York, New York 10022
                   Telecopy No.:  (212) 735-2000
                   Attention:  David Fox


                   SECTION 8.3.  Definitions.  For purposes of this
         Agreement:

                   (a)  except for purposes of Section 5.11, an
         "affiliate" of any person means another person that directly or
         indirectly, through one or more intermediaries, controls, is
         controlled by, or is under common control with, such first
         person, where "control" means the possession, directly or
         indirectly, of the power to direct or cause the direction of
         the management policies of a person, whether through the
         ownership of voting securities, by contract, as trustee or
         executor, or otherwise;

                   (b)  "material adverse change" or "material adverse
         effect" means, when used in connection with HFS or CUC, any
         change, effect, event, occurrence or state of facts that is, or
         would reasonably be expected to be, materially adverse to the
         business, financial condition or results of operations of such
         party and its subsidiaries taken as a whole; and the terms
         "material" and "materially" have correlative meanings;

                   (c)  "person" means an individual, corporation,
         partnership, limited liability company, joint venture,
         association, trust, unincorporated organization or other
         entity;

                   (d)  a "subsidiary" of any person means another
         person, an amount of the voting securities, other







                                       -77-







         voting ownership or voting partnership interests of which is
         sufficient to elect at least a majority of its Board of
         Directors or other governing body (or, if there are no such
         voting interests, 50% or more of the equity interests of which)
         is owned directly or indirectly by such first person and
         includes, in the case of HFS, all corporations conducting the
         car rental operation of Avis Inc. (referred to as "ARAC" in
         HFS's Annual Report on Form 10-K for the year ended December
         31, 1996) which are: Rental Car System Holdings, Inc. and its
         subsidiaries (including the corporate operations of Avis, Inc.
         and Prime Vehicles Trust, Avis International, Ltd. and
         subsidiaries, Avis Enterprises, Inc. and subsidiaries,
         Pathfinder Insurance Company and Global Excess & Reinsurance
         Ltd.); and

                   (e)  "knowledge" of any person which is not an
         individual means the knowledge of such person's executive
         officers or senior management of such person's operating
         divisions and segments, in each case after reasonable inquiry.

                   SECTION 8.4.  Interpretation.  When a reference is
         made in this Agreement to an Article, Section or Exhibit, such
         reference shall be to an Article or Section of, or an Exhibit
         to, this Agreement unless otherwise indicated.  The table of
         contents and headings contained in this Agreement are for
         reference purposes only and shall not affect in any way the
         meaning or interpretation of this Agreement.  Whenever the
         words "include", "includes" or "including" are used in this
         Agreement, they shall be deemed to be followed by the words
         "without limitation".  The words "hereof", "herein" and
         "hereunder" and words of similar import when used in this
         Agreement shall refer to this Agreement as a whole and not to
         any particular provision of this Agreement.  All terms defined
         in this Agreement shall have the defined meanings when used in
         any certificate or other document made or delivered pursuant
         hereto unless otherwise defined therein.  The definitions
         contained in this Agreement are applicable to the singular as
         well as the plural forms of such terms and to the masculine as
         well as to the feminine and neuter genders of such term.  Any
         agreement, instrument or statute defined or referred to herein
         or in any agreement or instrument that is referred to herein
         means such agreement, instrument or statute as from time to
         time amended, modified or supplemented, including (in the case
         of agreements or instruments) by waiver or








                                       -78-







         consent and (in the case of statutes) by succession of
         comparable successor statutes and references to all attachments
         thereto and instruments incorporated therein. References to a
         person are also to its permitted successors and assigns.

                   SECTION 8.5.  Counterparts.  This Agreement may be
         executed in one or more counterparts, all of which shall be
         considered one and the same agreement and shall become
         effective when one or more counterparts have been signed by
         each of the parties and delivered to the other parties.

                   SECTION 8.6.  Entire Agreement; No Third-Party
         Beneficiaries.  This Agreement (including the documents and
         instruments referred to herein) and the Confidentiality
         Agreement (a) constitute the entire agreement, and supersede
         all prior agreements and understandings, both written and oral,
         between the parties with respect to the subject matter of this
         Agreement and (b) except for the provisions of Article II,
         Section 5.6 and Section 5.8, are not intended to confer upon
         any person other than the parties any rights or remedies.

                   SECTION 8.7.  Governing Law.  This Agreement shall be
         governed by, and construed in accordance with, the laws of the
         State of Delaware, regardless of the laws that might otherwise
         govern under applicable principles of conflict of laws thereof.

                   SECTION 8.8.  Assignment.  Neither this Agreement nor
         any of the rights, interests or obligations under this
         Agreement shall be assigned, in whole or in part, by operation
         of law or otherwise by either of the parties hereto without the
         prior written consent of the other party.  Any assignment in
         violation of the preceding sentence shall be void.  Subject to
         the preceding two sentences, this Agreement will be binding
         upon, inure to the benefit of, and be enforceable by, the
         parties and their respective successors and assigns.

                   SECTION 8.9.  Consent to Jurisdiction.  Each of the
         parties hereto (a) consents to submit itself to the personal
         jurisdiction of any federal court located in the State of
         Delaware or any Delaware state court in the event any dispute
         arises out of this Agreement or any of the transactions
         contemplated by this Agreement, (b)










                                       -79-







         agrees that it will not attempt to deny or defeat such personal
         jurisdiction by motion or other request for leave from any such
         court, and (c) agrees that it will not bring any action
         relating to this Agreement or any of the transactions
         contemplated by this Agreement in any court other than a
         federal court sitting in the State of Delaware or a Delaware
         state court.

                   SECTION 8.10  Headings.  The headings contained in
         this Agreement are for reference purposes only and shall not
         affect in any way the meaning or interpretation of this
         Agreement.

                   SECTION 8.11  Severability.  If any term or other
         provision of this Agreement is invalid, illegal or incapable of
         being enforced by any rule of law or public policy, all other
         conditions and provisions of this Agreement shall nevertheless
         remain in full force and effect.  Upon such determination that
         any term or other provision is invalid, illegal or incapable of
         being enforced, the parties hereto shall negotiate in good
         faith to modify this Agreement so as to effect the original
         intent of the parties as closely as possible to the fullest
         extent permitted by applicable law in an acceptable manner to
         the end that the transactions contemplated hereby are fulfilled
         to the extent possible. 



























                                       -80-







                   IN WITNESS WHEREOF, CUC and HFS have caused this
         Agreement to be signed by their respective officers thereunto
         duly authorized, all as of the date first written above.


                             CUC INTERNATIONAL INC.


                             By /s/ E. Kirk Shelton                     
                               E. Kirk Shelton
                               President and Chief Operating
                               Officer

                             HFS INCORPORATED


                             By /s/ Henry R. Silverman                  
                               Henry R. Silverman
                               Chairman and Chief Executive
                               Officer
































                                       -81-