Your Vice Is a Locked Room and Only I Have the Key (Italian: Il tuo vizio รจ una stanza chiusa e solo io ne ho la chiave) is a 1972 giallo film directed by Sergio Martino. The picture stars Edwige Fenech, Luigi Pistilli, and Anita Strindberg. The film uses many elements from Edgar Allan Poe's short story The Black Cat, and acknowledges this influence in the film's opening credits.
Your Vice Is a Locked Room and Only I Have the Key was Martino's fourth giallo film. The title of the film is a reference to his first one, Lo strano vizio della Signora Wardh (The Strange Vice of Mrs. Wardh, 1971), in which the killer leaves the phrase as a note to his victim. The victim in the film was played by Fenech.
Oliviero Rouvigny (Pistilli), a failed writer and an alcoholic, lives in a crumbling mansion with his wife Irina (Strindberg), who is scared of Oliviero's cat, Satan, that used to belong to his late mother. To fight boredom, Oliviero organizes decadent parties for local hippies and humiliates and abuses Irina in front of the guests. After his mistress, a young student, is found murdered, Oliviero becomes the primary suspect. When he finds their maid dead on the premises, he decides to
(This is information generated from a Wikipedia article, licensed under the GNU Free Documentation License.)