La Orca (1976)

Controversial and seriously intense, La Orca (1976) is the story of a young woman who is kidnapped and held for ransom. During her captivity, she is abused and roughed up by multiple miscreants. Rather than succumb to their violent depredations, however, she comes to use sex to control her captors. Soon she has them eating out of her hand and, when the police finally come to rescue her, she exacts her revenge. The gorgeous Rena Niehaus is frequently naked, but the highlight is the image of her riding her captor, cowgirl style, and slowly pulling up her dress to reveal a hairy, sexy tangle of thatch.