In New York, after the death of her beloved brother Rick Barrett, his sister and heiress Celia has a brief love affair with Rick's friend and administrator of the funds Bob Dwight and they decide to marry each other. However, Celia travels on vacation to Mexico, where she meets the mysterious owner of a minor magazine Mark Lamphere and she has a crush on him. Mark is an eccentric man that collects rooms in his mansion in Blaze Creek and they immediately get married to each other. Celia travels to Levender Falls and she moves to the mansion. She discovers that Rick's sister Caroline Lamphere administrates the manor; his secretary Miss Robey also lives there; further, Rick has been previously married with a woman called Eleonor and their rebel and weird son, David, also lives in the house. Mark has a strange behavior but a gives a party to their common friends and he show his rooms, all of them related to men that killed their wives. But he does not open the room number 7 that he always keeps locked. Celia is intrigued and a little scared with the content of the room and she decides to find what Mark keeps locked in the mysterious room.