This offbeat combination of reality and fantasy finds Glauco (Michel Piccoli) returning home from his job as an industrial engineer to find his wife (Anita Pallenberg) in bed with a headache. Deciding to fix dinner for himself, he reads from a gourmet cookbook as he watches television, or listens to the radio. He runs across an old .45 caliber handgun and he cleans the weapon between attending to his culinary creation. He later goes to bed, but rises when he is restless and goes to make love with the maid (Annie Girardot), after which he examines the newly painted revolver. After shooting his wife to death, he imagines he is driven to the ocean where he swims out to a boat bound for Tahiti and takes a job as a cook. The title is a reference to the notorious American gangster who could shoot his way out of any place but the police line in front of Chicago's Biograph Theater.