Lopaka suspects that tennis bum Barry Logan is responsible for the murder of his boss in a quarrel over the boss's wife, but Cricket comes up with an alibi for him and convinces Lopaka to find the real killer, which he does during the course of a tennis tourament.

Actor Mark Hamiton arrives in Hawaii and Tracy Steele draws an unusual assignment, to keep Hamilton's three ex-wives away from him. They plan to kidnap him in order to get back alimony payments. Hamilton also gets involved in a murder when he kills his business manager, who was aware that the actor had evaded paying his income tax.