Sabotage (The Woman Alone)
Categories: [ TV/Cinema/Hitchcock ]
After Sabotage_(film) on Wikipedia:
Karl Verloc, the owner of a cinema, is part of a gang of saboteurs from an unnamed European country who are planning a series of attacks in London. Scotland Yard suspects Verloc's involvement in the plot and assigns Detective Sergeant Ted Spencer to investigate Verloc, initially under cover. Spencer conducts the investigation posing as a greengrocer's helper, selling fruit and vegetables in a shop right next to the cinema.
Verloc's young and beautiful wife believes that her husband is a good man because he has been kind to her and her little brother, Stevie, who lives with them. However, gradually she comes to suspect that her husband may be one of the people behind the terrorist attacks. The final straw comes when her little brother is killed, along with many other people, when a bus explodes. The boy had thought that he was simply delivering a film canister, but he was unknowingly carrying a time bomb for Verloc, to be detonated in the London Underground station under Piccadilly Circus. The boy had become distracted along the way, which had delayed his delivery, and thus the bomb exploded en route to its final target.
Verloc confesses to his wife, but then blames Scotland Yard and Spencer for Stevie's death, saying that they were the ones who prevented Verloc from successfully carrying out the bomb delivery himself. Soon afterwards, as Verloc and his wife are preparing to eat dinner, she stabs him to death with a knife. When Spencer arrives to arrest Verloc he realizes what has happened, but insists that she shouldn't admit that she killed her husband. Nevertheless, she starts to confess her crime to a policeman. Then an explosion and fire at the cinema intervene, destroying all the evidence of her crime and effectively preventing the policeman from remembering whether it was before or after the explosion that she told him, “My husband is dead!”
At the end we see Mrs Verloc and Ted Spencer walk away together.