The hero discovers his estranged wife dead and tries to frame her lover for the murder. He becomes involved with the criminals who make various unsuccessful attempts on his life while the police clear up the mystery.

Good Time Girl stars Jean Kent as incipient juvenile delinquent Gwen Rawlings. Sent to a home for "problem" girls, Gwen receives a crash course in petty crime. Back on the outside, she falls in with the usual bad crowd, and suffers spectacularly as a result.