Pet poročenih prijateljev sklene skrivni pakt. Delili si bodo razkošno mestno stanovanje, kjer se bodo lahko dobivali z ljubimkami in uresničevali svoje fantazije. Kar se zdi popolna rešitev, se kmalu izneveri, ko nekega dne v stanovanju najdejo truplo neznane ženske. Ker ima le njih pet ključe do stanovanja, začnejo sumiti drug drugega, preko raziskovanja preteklih dogodkov pa se počasi odkrije shrljiva resnica, in morda se je peterica ujela v smrtonosno past.
The architect Vincent Stevens; the psychiatrist Chris Vanowen; the real estate agents Luke Seacord and Marty Landry; and Chris' half-brother Philip Trauner are married and best friends. Vincent has designed a brand new building and proposes that he and his friends share one of the wonderful penthouse lofts. This would allow them to hook up with other women without worrying about hotel charges showing up on their credit cards. When they discover the body of a beautiful woman cuffed on the bed in the loft, they argue over whom is responsible and secrets are disclosed affecting their friendship.