About this season
The investigators behind infamous serial killer cases reveal the harrowing, chilling details of their extraordinary efforts in this true crime series.
Episodes (4)
1. Body Count: The Green River Killer
6.2Aired 4 November 2021 • 40 min
The unsolved murders of women around Green River near Seattle haunt investigators for decades — until crime scene science finally catches up.
2. Manhunter: Aileen Wuornos
7.0Aired 4 November 2021 • 40 min
A serial killer’s deadly road trip through Florida in 1990 leaves several men dead and spurs investigators to go undercover for an unexpected suspect.
3. True Lies (1): The Happy Face Killer
7.3Aired 4 November 2021 • 40 min
Odd suspects, questionable confessions and ever-shifting stories confuse detectives in the hunt for a young Oregon woman's killer in the early 1990s.
4. True Lies (2): The Happy Face Killer
7.0Aired 4 November 2021 • 40 min
A consequential letter surfaces with stirring claims and upends the seemingly closed case, calling into question the guilt of the convicted criminals.