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.
Mrs. Verloc
Sylvia Sidney
Karl Verloc - Her Husband
Oskar Homolka
Stevie - Her Young Brother
Desmond Tester
Ted
John Loder
Renee
Joyce Barbour
Superintendent Talbot
Matthew Boulton
Hollingshead
S. J. Warmington
The Professor
William Dewhurst
Mrs. Jones (uncredited)
Clare Greet
Greengrocer (uncredited)
Aubrey Mather
Monocle Man (uncredited)
Austin Trevor
Studious Youngster (uncredited)
Charles Hawtrey
The Professor's Daughter (uncredited)
Martita Hunt
Mr. Verloc's Visitor (uncredited)
Torin Thatcher
Mr. Verloc's Visitor (uncredited)
Peter Bull
Man Walking Past the Cinema as the Light Is Renewed
Alfred Hitchcock