Paul Douglas plays Joe MacBeth, a successful mobster whose wife has ambitions to be even more successful. Mrs. MacBeth talks her husband into killing his boss while the two of them are swimming, and when Joe timorously leaves the knife behind, his wife dives in after the weapon. Now near the top of the heap, Joe begins to believe that everyone is out to get him. He kills his best pal Banky, whose ghost shows up a banquet later that night (Joe dispenses with Shakespeare's iambic pentameter by shouting "What is this? A gag?") As Joe deteriorates, his wife goes crazy, screaming "Joe! There's blood on my hands!" in her sleep. Both Joe and his wife are killed in a shootout with rival gangsters.