Perversion(1979)

A prominent millionaire gets a woman drunk and rapes her, biting off her nipple in the process. Because of his influence and powerful lawyer, though, he is able to beat the rap, claiming the woman was trying to extort money from him. He continues his life of debauchery, using women and flaunting his power until he meets a new woman, who won't let him have his way with her, but wants to be his friend. Falling madly in love with her, he cleans up his act and devotes his attentions to her, not realizing that she has a hidden agenda.