《美国式禁忌》是1985年由无导演，无等主演的美国R级、剧情、喜剧、爱情电影。
Shy girl shares a room with her sister in a strict boarding school. On her sister's advice, she has sex with her boyfriend, and the two girls get expelled from the institution. Their psychiatrist father discovers his wife having an affair with her brother-in-law, who later has sex with his niece.