When Michigan businessman Jake Van Dorn (George C. Scott) lets his teenage daughter go on a church trip to California, she never returns. Jake hires Los Angeles investigator Andy Mast (Peter Boyle) to look for her, and Mast turns up a pornographic film she's recently appeared in. Both stunned and increasingly disappointed with the police, Jake travels to California where he poses as an adult-film producer in hopes of finding someone who's seen his little girl.