Michael Redgrave with an ingenious hand for disorder ... Robert Morley as the intrepid arm of the law ...

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.