An unpolished racketeer, whose racket is finding heirs for unclaimed fortunes, affects ethics and tea-drinking manners to win back the sweetheart who now works for his seemingly upright competitor.

Amidst a backdrop of growing violence and intimidation, independent cab drivers struggling against a consolidated juggernaut rally around hot-tempered Matt Nolan. Nolan is determined to keep competition alive on the streets, even if it means losing the woman he loves.

A wealthy society doctor decides to research the medical aspects of criminal behaviour by becoming one himself. He joins a gang of thieves and proceeds to wrest leadership of the gang away from its extremely resentful leader.

In 1925 Damascus Harry Smith runs guns to the rebels under Emir Hassan. The French arrest him along with others and force him to sell weapons to them. He develops an interest in French intelligence officer Feroud's mistress Violette.

Joe Barrett returns to Tokyo after World War II where he once owned a bar, Tokyo Joe's, and deserted his wife Trina. They have a seven-year-old daughter. Kimura forces Joe into piloting war criminals by revealing that during the war Trina made treasonous propaganda broadcasts.