Sabra Tanner (Susan Cabot) is a member of an exclusive sorority on a small California campus. Wealthy, attractive, and intelligent, she should be sitting on top of the world and feel like she is; but she's the product of an emotionally abusive upbringing, by an uncaring mother, and she's so twisted in her thinking, that she knows not a moment of peace. She believes that no one accepts her, and in her growing paranoia, lashes out at her fellow sorority members, their boyfriends and fiancés, and anyone else she can bully and threaten. Her machinations finally catch up with her, but not before she sets a tragedy in motion. This film was remade in 1994 for cable as Confessions of Sorority Girls.