His Wife's Habit (1970)

"You might live with an alcoholic, or you might live with a dope addict. But not with . . . HIS WIFE'S HABIT!"

A promiscuous woman, Darcy, has affairs with every man she meets, including her daughter's boy friend. She is terrorized by a motel parking attendant, Grapes, who chases her and one of her lovers on his motorcycle. The lover is killed but Darcy lives. Grapes and his psychotic friend, Anthony, continue harassing Darcy and her daughter, Hart.