 Fay Allison (Sue England) and her roommate Anita (Jean Willes) are found unconscious by Fay s aunt, Louise Marlow (Frances Bavier), who calls her attorney Perry Mason in desperation. In the girls  apartment Perry and Della discover a key that leads them to the body of Carver Clement (John Holland). Someone has left a crimson kiss on Carver s forehead and planted evidence that incriminates Fay. Perry must use all his skills to defend his young client.