

Who really laced Tylenol with cyanide? This true-crime series examines alarming theories behind the unsolved killings — and tracks down a key suspect.
TV-14 • Documentary, Crime • Series • 2025 • 1 season
Starring: Jeff Flock, James Lewis, Michelle Rosen
Created by: Yotam Guendelman, Ari Pines

S1 E1 - Pain Killer
After cyanide-laced Tylenol kills multiple people across Chicago, police and the media scramble to spread a nationwide warning.
May 26, 2025 • 43m

S1 E2 - The Bitter Pill
A key suspect maintains his innocence, even as authorities discover his suspicious past and possible motive. Tylenol unveils new triple-seal packaging.
May 26, 2025 • 39m

S1 E3 - Sealed for Your Protection
Decades after the murders, a victim's daughter searches for justice — and uncovers forgotten evidence that supports a controversial theory.
May 26, 2025 • 37m
Cold Case: The Tylenol Murders
Who really laced Tylenol with cyanide? This true-crime series examines alarming theories behind the unsolved killings — and tracks down a key suspect.
TV-14 • Documentary, Crime • TV Series • 2025