Train geeks, glamorous villains, repeated thrills, and final climax are all classic elements in Hitchcock's movies; a "Merry Widow Waltz" has repeatedly appeared, which is both suspense and echo. In addition, the film’s portrayal of Charlie’s family of five is particularly outstanding: a mother who is very careful about steps (it is said to be based on Hitchcock’s recently passed mother, who even has the same name), and a father who likes to explore methods of murder. A simple but astute sister, a pedantic sister who loves to read, and a younger brother who is gifted with numbers. His uncle suffered misfortune when he was young and became cynical, which led to his criminal acts and tragic end; but he eventually retained a positive image in front of the world, and the funeral of a thousand people was quite ironic.
Hitchcock mentioned this film as his favorite work many times in the interview. It's as if he was surprised by his super flush in the film.
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