Killer Headache: The Tylenol Murders takes you back to 1982, when a few poisoned pills turned a trusted household name into a national nightmare. As innocent people dropped dead from taking over-the-counter Tylenol, panic gripped Chicago—and the country. Who was behind the tampering? Why were they never caught? And how did it change consumer safety forever? We break down the case, the chaos, and the corporate scrambling, with a healthy dose of dark humour. It’s true crime, but with a twist of cyanide.