METLIFE INSURANCE COMPANY OF CONNECTICUT REGISTERED FIXED ACCOUNT OPTION FIXED ANNUITY METLIFE RETIREMENT ACCOUNT ANNUITY T-MARK SUPPLEMENT DATED MARCH 27, 2009 TO THE PROSPECTUS DATED APRIL 28, 2008, AS SUPPLEMENTED METLIFE TARGET MATURITY SUPPLEMENT DATED MARCH 27, 2009 TO THE PROSPECTUS DATED JANUARY 23, 2009, AS SUPPLEMENTED The Company filed a Form 8-K on March 26, 2009 via EDGAR File No. 033-03094. The Form 8-K is incorporated by reference into the prospectus. We are not incorporating by reference, in any case, any documents or information deemed to have been furnished and not filed in accordance with SEC rules. This supplement should be read in its entirety and kept together with your prospectus for future reference. Please contact us at the following telephone numbers, if you have any questions: 1-800-874-1225 -Fixed Annuity 1-800-599-9460 -T-Mark 1-800-874-1225 -Registered Fixed Option 1-800-842-9406 -MetLife Retirement Account Annuity 1-800-599-9460 -MetLife Target Maturity Books 21, 27, 28, 29 and 74 March 27, 2009