Pretty Poison is a 1968 American black comedy film directed by Noel Black, starring Anthony Perkins and Tuesday Weld, about an ex-convict and high school cheerleader who commit a series of crimes. The film was based on the novel She Let Him Continue by Stephen Geller. It has become a cult film.

Plot

Dennis Pitt is a disturbed young man on parole from a mental institution who becomes attracted to teenager Sue Ann Stepenek. He tells her that he is a secret agent, and takes her along on a series of "missions". Things, however, turn out disastrously when Dennis takes Sue Ann along to sabotage a factory on imaginary orders from the CIA. When the couple encounters the factory's night watchman, Sue Ann knocks him unconscious and then drowns him. While Dennis is wracked with guilt over both what he has done and what he has allowed to happen, Sue Ann is excited by the "adventure" and entreats Dennis to run away with her to Mexico. First, however, they have to get rid of her disapproving mother. The couple return to Sue Ann's home for her clothes and are interrupted by the arrival of Mrs. Stepanek. Sue Ann realizes that Dennis is incapable of actually killing a person, so she shoots her mother and orders Dennis to dispose of the body. But instead, he calls the police.