Second Bureau is a 1935 British spy thriller film directed by Victor Hanbury and starring Marta Labarr, Stewart Rome, and Leslie Perrins.
The film's plot revolves around a young woman who is recruited by the "Second Bureau," a French intelligence agency, to infiltrate a group of foreign spies operating in London. Her mission is to uncover their plans and prevent them from carrying out their espionage activities. She faces dangers and moral dilemmas as she becomes entangled in the world of espionage and must use her wits and courage to succeed. The film is a fairly typical example of British spy thrillers of the era, with its focus on suspense, intrigue, and the battle between good and evil on an international stage.