Janet Holman is suspicious of her fiancé, Allen Wells, after he kisses her best friend Gwen when the lights are turned out during a party. Allen leaves early, purportedly for business reasons, but in reality, he is going to visit his secret girl friend, seventeen-year-old Ruth Jarrett. When Ruth's neighbor and landlady, Mrs. Humphries, overhears her talking to Allen on the phone, she becomes morally outraged and calls the police. Ruth is taken away to juvenile hall, and when Ruth's older brother...