Cockney Danny Cruff is the son of a man wrongly accused of murder. Danny decides to solve the mystery himself by hobnobbing with London's underworld. To do this, he poses as a juvenile delinquent.
A beautician and her crooked boyfriend attempt to rob the bookie operation located in the back room, but when the plan goes wrong, they frame an innocent man.
Giovanni used to be a humble, mild-mannered government clerk whose life was turned upside down when he met Giulio, a notorious forger who at once set about manipulating the over-confident man.
The millionairess aunt of Errol's previously married wife is coming to visit, and since the aunt is dead set against divorce, the wife prevails upon Errol to pose as the butler, and brings back her inebriated first husband to pose as her current mate.
Maggi continues her forever-ever efforts to crash Manhattan's top society, while Jiggs still mingles with his old construction cronies at the bar of Dinty Moore on 10th Avenue.