An unlikely foursome foil a plan to sell a secret missile guidance system to Cuban agents and avenge a savage crime. Yin lives with his uncle, a compulsive gambler who's piling up debts. Both love May. Yin chauffeurs for the shady Mr. Tanakawa who's selling a stolen missile guidance system. Two young thieves seem to know all Tanakawa's moves. Who's tipping them off? Meanwhile, a ghost whom Tanakawa raped and murdered 40 years before wants revenge and enlists the help of an apprentice Taoist priest. Yin, the ghost, one of the young thieves, and the apprentice must rescue the kidnaped May and face the forces of guns and magic that Tanakawa musters.