The 39 Steps

While on vacation in London, Canadian Richard Hannay (Robert Donat) becomes embroiled in an international spy ring related to the mysterious 39 steps. Then he meets agent Annabella Smith (Lucie Mannheim), who is soon killed in his apartment. He must elude the police, who are hunting him for murder

A London man tries to help a secret Agent, but when the Agent is killed the man stands accused, now on the run to save himself and stop a spy ring which is trying to steal top secret information.