Sabotage, also released as The Woman Alone, is a 1936 British espionage thriller film directed by Alfred Hitchcock about terrorism in the United Kingdom and an agent who hides a time bomb in a delivery package to blow up London. It is loosely based on Joseph Conrads novel The Secret Agent. It should not be confused with Hitchcocks film Secret Agent, also released in 1936.
The next day, Verloc meets with his contact and it is revealed that he is part of a gang of terrorists from an unnamed European country who are planning a series of attacks in London, though, their exact motives are not made clear. Verlocs contact is disappointed that the newspapers mocked the short loss of electricity, and instructs Verloc to place a parcel of firecrackers at the Piccadilly London Underground station. Verloc tells the contact that he is not comfortable with any act that would cause the loss of life.Meanwhile, Scotland Yard suspects Verlocs involvement in the plot and assigns Detective Sergeant Ted Spencer John Loder to investigate Verloc. Spencer is initially undercover as a greengrocers helper next to the cinema, and befriends Mrs. Verloc and her little brother, Stevie Desmond Tester, who lives with them, by treating them to a fancy dinner. At this point, Spencer and Scotland Yard are unsure whether Mrs. Verloc is complicit in the terrorist plots or merely innocently unaware. ........
Source: Wikipedia