Queer face

On the trail of a jewel robber, Superintendent John Brent from Scotland Yard lies in wait, with the police, outside a riverside country house - the thief's next anticipated target. But, avoiding arrest, the armed robber fatally shoots Brent and escapes onto his boat. When the launch is found, a single thumbprint is the only clue to the owner's identity. Brent's policeman son, vows to find the man responsible - the man he will come to know as 'Queer Face'.