# The MONSTER With 21 Faces : Japan's Greatest Unsolved Mystery Page: https://stenobird.com/podcast/mysteries-and-histories-1576928/the-monster-with-21-faces-japan-s-greatest-unsolved-mystery Text version: https://stenobird.com/podcast/mysteries-and-histories-1576928/the-monster-with-21-faces-japan-s-greatest-unsolved-mystery.md Podcast: [Mysteries and Histories](https://stenobird.com/podcast/mysteries-and-histories-1576928) Published: 2026-06-03T11:00:00+00:00 Episode link: https://podcasters.spotify.com/pod/show/georgiamariexo/episodes/The-MONSTER-With-21-Faces--Japans-Greatest-Unsolved-Mystery-e3k97q3 Audio file: https://traffic.megaphone.fm/APO5190001132.mp3 Processing state: not_requested JSON: https://stenobird.com/v1/public/podcasts/mysteries-and-histories-1576928/episodes/the-monster-with-21-faces-japan-s-greatest-unsolved-mystery Duration seconds: 2184 ## Resource In the mid‑1980s, a shadowy group calling itself “The Monster with 21 Faces” terrorized Japan by tampering with popular candy and snack brands, sending taunting letters to the police and media, and threatening to poison products on store shelves. Their campaign of blackmail, arson, and public fear forced massive product recalls, humiliated law enforcement, and dominated national headlines, yet despite intense investigation and one suspect driven to suicide, the group vanished without a trace and has never been identified, leaving behind one of Japan’s most chilling unsolved mysteries. ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/mysteries-and-histories-1576928/episodes/the-monster-with-21-faces-japan-s-greatest-unsolved-mystery/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/mysteries-and-histories-1576928/the-monster-with-21-faces-japan-s-greatest-unsolved-mystery.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.