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John R. Murphy
Associate General Counsel
MetLife
1095 Avenue of the Americas
New York, NY 10036
T: 212-578-3096
F: 212-251-1596

April 6, 2012

Re:  MetLife Insurance Company of Connecticut
     File No. 333-178884
     T-Mark

Ladies and Gentlemen:

This opinion is furnished in connection with the proposed offering of a certain
fixed annuity contract (the "Contract") issued by MetLife Insurance Company of
Connecticut ("MICC") under Registration Statement No. 333-178884 (the
"Registration Statement") and described therein, filed by MICC under the
Securities Act of 1933, as amended.  MICC is a wholly-owned subsidiary of
MetLife, Inc. and an affiliate of Metropolitan Life Insurance Company.

I have made such examination of law and examined such records of MICC and other
documents as in my judgment are necessary or appropriate to render the opinion
expressed below.  In my opinion:

1. MICC is a corporation validly existing and in good standing under the laws
of the State of Connecticut.

2. The offer and sale by MICC of the Contracts have been duly authorized
pursuant to the corporate and insurance laws of the State of Connecticut and the
Company's governing documents. Each Contract, when delivered and when the first
purchase payment thereunder is made, all in accordance with the prospectus (the
"Prospectus") included in the Registration Statement and in compliance with the
applicable local law, will be a legal and binding obligation of MICC in
accordance with its terms. Owners of Contracts, as such, will not be subject to
any deductions and charges by MICC other than those described or referred to in
the Prospectus.

I hereby consent to the use of this opinion as Exhibit 5 to the Registration
Statement.

Very truly yours,

/s/ John R. Murphy
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John R. Murphy