Between 1933 and 1945, a secret Japanese military facility processed thousands of prisoners — men, women, children — calling them 'logs.' The experiments conducted there remain among the most horrifying in modern history. And the deal that buried it all may be even worse.

Content warning: This episode contains descriptions of biological warfare, human experimentation, and mass death.

Narration: AI-generated voice. Research: Multi-source verified.

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The Unlit Room explores the darkest true stories in history — unsolved mysteries, disaster reconstructions, infamous heists, and the events too strange to be fiction. New episodes Monday through Saturday.

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