A Doomsday Cult & A Killer Machine | Ant Hill Kids vs. Therac-25

A husband and wife take turns telling each other the most disturbing true stories they can find—and YOU decide who wins. This week: one horror was man-made by hand, the other by code.

First Chris tells us about the Therac-25, a radiation therapy machine meant to save cancer patients. Between 1985 and 1987, at least six patients were overdosed with radiation up to 100 times the intended amount, and three of them died—all because of a race condition buried in the software. No cult. No knife. Just a keystroke entered too fast and a machine that swore everything was fine.

Then Meg takes us deep into the Quebec wilderness and the Ant Hill Kids—the doomsday cult led by self-proclaimed prophet Roch Thériault, who convinced dozens of followers to abandon everything and wait for the end of the world. What began as a self-sufficient commune became one of the most disturbing chapters in Canadian history, spiraling into torture, mutilation, and murder inside the trees.

A cult that devoured its own vs. a machine that killed by mistake. Which one crawls further under your skin? That's up to you.

👉 VOTE in the comments: whose story disturbed you more this week?

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