They Can't Hang Me (1955)

Breezy espionage drama in which Terence Morgan and Anthony Oliver race around London and the Home Counties looking for a master spy. Director Val Guest's wife Yolande Donlan is so teeth-grindingly chirpy as Morgan's redundant love interest that you can't blame him for spending all his time at work, while Andre Morell is terrific as a civil servant trying to bargain away the noose from around his neck by revealing the spy's identity. Still not sure who phoned the police in the opening scene, though...