Detective Kamitsu investigates a baffling locked-room murder of a wealthy businessman. A mysterious "Woman in Black" disappears from a sealed room, and a stolen diamond escalates the crime—leading to multiple related murders and hidden connections.

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Main Cast: Ainosuke Kataoka, Maki Mizuno, Takashi Fujii, Takashi Ukaji, Hirotaro Satomi

Director: Ryūichi Honda

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