Diabolical
Like trying to decipher the value of a book without ever opening it, judging a person by his or her outward appearance can be a mistake. Someone may look perfect on the outside, but even the most kind-hearted soul has a dark side looming. "Diabolical" is a docuseries that delves into the minds of murderers, asking a simple question: "Why did they do it?" The acts were committed with extreme premeditation -- many were months or even years in the making. Tension builds in each episode as law enforcement taps into the methods of devious masterminds, aided by insights from forensic psychologists and psychiatrists as well as criminal profilers.
- Director
- Andrea de Brito
- Status
- Returning series
- First air date
- 01/01/2018
- Original language
- English
Main cast
Seasons and episodes
Images

You may also like
El asesino sin rostro
2020 · TV show
On Patrol: Live
2022 · TV show
Dateline: Secrets Uncovered
2017 · TV show
Viviendo con el enemigo
2016 · TV show
On Patrol: First Shift
2022 · TV show
Live PD
2016 · TV show
Somebody's Hiding Something
2023 · TV show
Court Cam
2019 · TV show
James Patterson's Murder is Forever
2018 · TV show
Buzzfeed Unsolved: True Crime
2016 · TV show
A Time to Kill
2020 · TV show
The Trade
2018 · TV show