Maîtresse (French for "mistress" or "teacher") is a 1975 French film directed by Barbet Schroeder, starring Bulle Ogier and, in one of his earliest leading roles, Gérard Depardieu. The film provoked controversy in the United Kingdom and the United States because of its graphic depictions of sado-masochism.
Olivier (Depardieu) is a small-time crook. He and a friend happen to meet a woman, Ariane (Ogier) whose plumbing needs to be fixed. They fix the pipes and learn that the landlord downstairs is away. They take the opportunity to burgle him. However they discover that in fact downstairs Ariane has a torture chamber—she is a professional dominatrix. At Ariane's request, Olivier assists her with her work and slowly becomes obsessed with her, but struggles with her sado-masochistic activities. Olivier tries to understand and take control of Ariane, whom he believes frightened in her job; however, as their love blossoms, their natural roles of dominant and submissive cannot be overcome.