Marjorie (Fawcett) is a young woman who works in a museum and lives with two female roommates, Pat (Woodard) and Terry (Scarwid) in Los Angeles. One night, while getting into her car, she is attacked at knifepoint by a masked assailant (Russo), who forces her to touch him sexually. Marjorie manages to escape, but not before the mugger makes off with her purse. She goes to the police but is told there is very little they can do. One week later, while Marjorie's roommates are at work, her nightmare comes true as the assailant (named Joe) casually enters her house, having used her personal information to find out where she lives.