Hollingshead
Karl Anton Verloc and his wife own a small cinema in a quiet London suburb where they live seemingly happily. But Mrs. Verloc does not know that her husband has a secret that will affect their relationship and threaten her teenage brother's life.
Scotland Yard Man (uncredited)
Richard Hanney has a rude awakening when a glamorous female spy falls into his bed - with a knife in her back. Having a bit of trouble explaining it all to Scotland Yard, he heads for the hills of Scotland to try to clear his name by locating the spy ring known as The 39 Steps.
Rawlings - Gang Member (uncredited)
While vacationing in St. Moritz, a British couple receive a clue to an imminent assassination attempt, only to learn that their daughter has been kidnapped to keep them quiet.
Inspector Hilton
An ex army officer is forced to resort to a life of crime.
When Matt Denant (Gerald de Maurier) finds himself wrongly imprisoned for manslaughter, he takes an opportunity to escape from jail during a foggy day and is forced to rely on the goodwill of local people to remain a fugitive of the law.
Bennett
When a woman is convicted of murder, one of the jurors selected to serve on the murder-trial jury believes the accused, an aspiring actress, is innocent of the crime and takes it upon himself to apprehend the real killer.
