Your Vice Is a Locked Room and Only I Have the Key

Your Vice Is a Locked Room and Only I Have the Key is a 1972 Italian giallo film directed by Sergio Martino and starring Edwige Fenech, Luigi Pistilli, and Anita Strindberg. The film revolves around a depraved writer and his mistreated wife, whose fragile relationship is further complicated by local murders and the arrival of the writer's beautiful niece.