Watch Diabolical Online

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. Read More

Watch Diabolical online. Featuring Ross Huguet, Diabolical has 3 seasons and 30 episodes in total. It is available for streaming online in the USA on 10 services such as Apple TV and Amazon Video. It is classified as Crime and Documentary genre series and the average rating across the web is 0. The TV series was filmed in Canada and was first aired on 2018. Read Less