A college professor wants to bring the joys of sex to his frigid wife. He convinces his son in law to sleep with her because the idea arouses him, while also making him insanely jealous. The professor keeps a journal of his fantasies in a locked cupboard and hopes that his wife will find the key and read it.
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Last updated: June 9, 2026
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Moviely has 1 free The Key cinematic wallpapers available to browse, preview in Mac Mode, and download.
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The Key released in 1974. Moviely hosts cinematic wallpapers captured from the movie's official backdrop imagery.
Tatsumi Kumashiro directed The Key.
The Key stars Shigeko Ando, Yuki Aresa, Moeko Ezawa, Hideo Kanze, Yoshi Katō, and more.
The Key has a runtime of 1h 30min.
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