![Poster of the movie Your Vice Is a Locked Room and Only I Have the Key [1972]](/images/posters/1000x1500/99/your-vice-is-a-locked-room-and-only-i-have-the-key-1972-us-poster.jpg)
1972 Thriller
1h 36min
Oliviero is a burned-out writer living at his estate near Venice, his dead mother dominating his imagination. He is also a degenerate: sleeps with his maid and his ex-student, hosts parties for local hippies, and humiliates his wife Irina in front of strangers. She lives in terror. When a young woman is murdered, police suspect Oliviero. Things get complicated when his young, beautiful, and self-confident niece, Floriana, pays an unexpected visit. A silver-haired stranger observes. More women die, and thoughts of harming Irina give Oliviero new inspiration. What's Floriana's game and who's the observant stranger? Watching all is a black cat named Satan.
| Directed by | Sergio Martino |
| Written by | Ernesto Gastaldi |
| Original title | Il tuo vizio è una stanza chiusa e solo io ne ho la chiave |
| Original lang. | Italian |
| Country | Italy |