A woman married to the owner of a London cinema discovers her husband is secretly a saboteur working for a foreign power. She becomes embroiled in his dangerous activities when the authorities begin to suspect him, and her young nephew inadvertently gets caught in the middle of a plot involving a ticking bomb.

Sabotage was generally well-received by critics upon its release, praised for its suspenseful direction and Sylvia Sidney's performance. While some found the plot occasionally convoluted, it is considered a strong example of Hitchcock's early British thrillers and a solid contribution to the genre.

• Hitchcock's masterful direction creates palpable tension and suspense.
• Sylvia Sidney delivers a compelling and sympathetic performance.
• The film effectively portrays the paranoia and danger of espionage.

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The film is based on Joseph Conrad's novel 'The Secret Agent', but Hitchcock changed the protagonist's nationality from Russian to an unnamed foreign power to avoid political controversy at the time of release.