

Overview
Who really laced Tylenol with cyanide? This true-crime series examines alarming theories behind the unsolved killings — and tracks down a key suspect.
Cast
7Open an episode for ages at its air date.
- TMDB ID
- 289486 ↗
- First aired
- 2025-05-26
- Last aired
- 2025-05-26
- Status
- Ended
- Genres
- Documentary, Crime
- Creators
- Yotam Guendelman, Ari Pines
- Countries
- US
- Languages
- English
Family guidance
Age ratings
16Spain (ES)
Not recommended for viewers under the age of 16.
TV-14United States of America (US)
This program contains some material that many parents would find unsuitable for children under 14 years of age.
15United Kingdom (GB)
No-one under 15 is allowed to see a 15 film at the cinema or buy/rent a 15 rated video. 15 rated works are not suitable for children under 15 years of age.
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Kids-In-MindEditorial 0–10 ratings
Kids-In-Mind rates movies, not TV series. This says nothing about the content of this series.
All regional certifications (13)
16Spain (ES)
Not recommended for viewers under the age of 16.
TV-14United States of America (US)
This program contains some material that many parents would find unsuitable for children under 14 years of age.
15United Kingdom (GB)
No-one under 15 is allowed to see a 15 film at the cinema or buy/rent a 15 rated video. 15 rated works are not suitable for children under 15 years of age.
MAustralia (AU)
Recommended for mature audiences; M-rated content may only be broadcast between 8:30 p.m. and 5:00 a.m. on any day, and additionally between 12:00 p.m. and 3:00 p.m. on schooldays.
16Brazil (BR)
Content suitable for viewers over the age of 16.
14+Canada (CA)
Programming intended for viewers ages 14 and older. May contain strong violence and strong profanity, and depictions of sexual activity as long as they are within the context of a story.
15Ireland (IE)
15A - No-one younger than 15.
MNew Zealand (NZ)
Suitable for mature audiences 16 years and over.
TV-14Puerto Rico (PR)
No additional details available.
NC16Singapore (SG)
No additional details available.
15South Korea (KR)
This rating is for programs that contain material that may be inappropriate for children under 15, and that parental discretion should be used. Examples include most dramas, and talk shows on OTA (over-the-air) TV (KBS, MBC, SBS), and many American TV shows/dramas on Cable TV channels like OCN and OnStyle. The programs that have this rating may include moderate or strong adult themes, language, sexual inference, and violence. As with the TV-MA rating in North America, this rating is commonly applied to live events where the occurrence of inappropriate dialogue is unpredictable. Since 2007, this rating is the most used rating for TV.
18+Turkey (TR)
Suitable for ages 18 and over.
TV-14US Virgin Islands (VI)
No additional details available.
