Having lost his heavyweight championship match| boxer Ernie Driscoll now drives a taxi for a living and earns the scorn of his nagging wife| Pauline| who blames him for her lack of social status. Involved with jewel thief Victor Rawlins| Pauline is murdered by him when she impedes his ability to fence the jewels. Blamed for his wife's murder| Ernie must track down Rawlins before he leaves the country.