Mrs. Sylvia Verloc (as Sylvia Sydney)
Karl Anton Verloc (as Oscar Homolka)
Detective Sergeant Ted Spencer
Professor A.F. Chatman
The Cook Mrs. Jones (uncredited)
A Scotland Yard undercover detective is on the trail of a saboteur who is part of a plot to set off a bomb in London. But when the detective’s cover is blown, the plot begins to unravel.
IMDb Rating7.1 12,143 votes
TMDb Rating6.8 votes