A high school girl who needs a ride accepts one from a boy she doesn't know. He then forces her to participate in a robbery, in which a clerk is killed. They are soon caught, and the girl, despite her protestations of innocence, is convicted of first-degree murder and sent to prison. Once she gets there, she finds out that her troubles are just beginning.

A lonely kid meets a hippy couple who introduce him to booze and pot. He gets into trouble at home and with the law.

On her way home from a stay at a mental institution after a traumatic rape, a woman realizes that someone is deliberately trying to drive her insane.

Columbo is a friendly, verbose, disheveled-looking police detective who is consistently underestimated by his suspects. Despite his unprepossessing appearance and apparent absentmindedness, he shrewdly solves all of his cases and secures all evidence needed for indictment. His formidable eye for detail and meticulously dedicated approach often become clear to the killer only late in the storyline.