Explores the chilling cases of lesser-known serial killers whose crimes went unnoticed for years, leaving a trail of fear and unsolved murders before they were finally caught.
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see all options Availability data: JustWatch
- Seasons
- 2
- Episodes aired
- 12
- Latest aired
- S02E06
- Total runtime
- 5h 1min
Timeline when each season aired
- Season 1 May 2025 – June 2025 6 episodes
- Season 2 August 2026 – September 2026 7 episodes
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S01E01 Carl Watts
May 18 · 43min find the promo
Show synopsis
Chilling confessions from a vicious slasher detail only some of his 100+ victims. When he's set to be the first serial killer ever released from prison, an eyewitness from decades prior could force justice on the man who vows to kill again.
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S01E02 William Suff
May 25 · 43min find the promo
Show synopsis
In the '90s, a deranged killer stalks sex workers in Riverside, Calif., claiming the lives of 13 women. When a would-be victim describes the perp to police, the race is on to catch the murderous john before he strikes again.
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S01E03 Daniel Conahan
June 1 find the promo
Show synopsis
Five corpses are found on the Florida hog trails. The investigation stalls until two men narrowly escape the perp's clutches. Years later, eight more bodies are found in nearby woods, leaving police to wonder if it's the same evil killer.
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S01E04 Terry Rasmussen
June 8 find the promo
Show synopsis
Multiple unidentified bodies are found inside barrels in a New Hampshire forest. Decades later, a murder 3,000 miles away reveals their connection to a serial predator who changes his identity after every violent kill.
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S01E05 Maury Travis
June 15 find the promo
Show synopsis
From 2001 the bodies of 12 black women start to surface in Missouri and Illinois. As the investigation intensifies the killer start to taunts authorities.
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S01E06 Herb Baumeister
June 22 find the promo
Show synopsis
A group of young gay men disappear in Indiana during the 1990s. An amateur detective uncovers clues that leads to identify a merciless offender.