James Mason is teamed up once again with Virginia Cherill whom he appeared with in his debut film, 'Late Extra'. He plays a government agent (John Merriman) who makes a few enquiries and follows leads. Cherill plays June Elkhardt.

A Duke's son plays the part of a footman and shows himself amusing in the pantry.

Bradshaw, an Englishman, is arrested for the New York killing of booze racketeer Buck Cooly. Interrogated by police chief Galvin, Bradshaw claims self-defence, but refuses to name the woman he was with at the speakeasy where Cooly was shot, and who could provide the alibi that would exonerate him from a murder charge. Galvin's continued pursuit of the woman's identity eventually leads to an unwelcome surprise.