Jenny Bowman is a successful singer who, while on an engagement at the London Palladium, visits David Donne to see her son Matt again, spending a few glorious days with him while his father is away in Rome in an attempt to attain the family that she never had. When David returns, Matt is torn between his loyalty to his father and his affection for Jenny.

When Percy Brand, a habitual confidence trickster, keeps being sent down, he goes to great lengths to ensure that his son Colin, does not find out about his criminal past. But when Colin becomes an assistant to the Judge, who is about to try Percy for his latest escapade, Percy and his gang have to come up with a plan, to stop them meeting in court.