 Singing star Mavis Marlowe is murdered just after receiving a heart shaped ruby brooch. Before Kirk Bennett, who discovers the body, can call the police, the brooch is taken by someone he can t see, and he flees in panic. Of course, circumstantial evidence ensures Bennett s conviction. But his loyal wife Catherine doggedly searches for the truth...aided by alcoholic songwriter Marty Blair, ex-husband of the victim, who finds that he and Catherine make a good team.