The Girl and the Wooden Horse Torture (1982)

Nami is a seemly ordinary high school girl but she has vivid masochistic visions that excite her and practices binding herself tightly with rope. One day she is attacked by two delinquent girls. Muraki, a teacher with a weak heart, sees this and scares them off. Nami’s bizarre hallucinations now begin to feature Muraki abusing her in various S&M situations. Two years later Nami, a college student, meets Muraki on the street and invites him for a drink. He gets drunk and passes out. When he wakes up he finds himself in a S&M themed hotel room where Nami waits to fulfill her desire to be dominated and abused by the man of her dreams.