On the shelf
Unmasking the Tylenol Killer
2026
Where to watch
- United StatesThe Roku Channel
- AustraliaAmazon Prime Video
- New ZealandAmazon Prime Video
3 more countries
- United KingdomRent or buy
- CanadaRent or buy
- GuernseyRent or buy
Checked 11 Nov 2026 · Data: JustWatch
See it on the shelfA detective inspired by an episode of "Unsolved Mysteries" takes on the unsolved case of a death by cyanide.