Frankie Four Fingers was supposed to smuggle a stolen diamond from England to the USA for his boss Evi, but, placing a bet on an underground boxing match, he found himself caught in a maelstrom of highly undesirable events. Around him and his cargo unfolds a complex intrigue with the involvement of a colorful cast of London's underworld—a Russian gangster, three inept robbers, a crafty boxer, and a grim thug of a formidable mafioso. Each man is out to snatch the big payoff on his own.