Series

Diabolical

★ 8.0(2)201842m3 seasons

Diabolical isn't available to stream, rent or buy in Switzerland right now. Availability changes often, so check back soon. Availability checked 12 June 2026.

Where to watch Diabolical

🇨🇭 Switzerland

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Streaming in other regions

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Good to know

Release date: 2018-01-01
Runtime: 42m
Language: English
Seasons: 3
Episodes: 30
Network: Investigation Discovery
Status: Returning Series
Country: Canada
Studio: Lion Television

About Diabolical

Diabolical is a 2018 web series in the Crime and Documentary genres, starring Ross Huguet. It spans 3 seasons and 30 episodes, and originally aired on Investigation Discovery. It holds an average rating of 8.0/10 from 2 viewers. Below you can see where to watch Diabolical in Switzerland — across streaming, rental and purchase options — along with the full cast, trailer and viewer reviews.

Synopsis

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.

Seasons (3)

Season 110 eps · 2018

Season 210 eps · 2019

Season 310 eps · 2020

Cast

Ross Huguet

Narrator (voice)

Themes & keywords

homicidemurder

Frequently asked questions

Where can I watch Diabolical in Switzerland?+

Diabolical is not currently listed on any streaming, rental or purchase service in Switzerland. Availability changes often, so check back or switch your region.

Is Diabolical on Netflix?+

Diabolical is not on Netflix in Switzerland right now.

How many seasons of Diabolical are there?+

Diabolical has 3 seasons and 30 episodes in total.

Who stars in Diabolical?+

Diabolical stars Ross Huguet.

When did Diabolical come out?+

Diabolical is a 2018 web series.

What genre is Diabolical?+

Diabolical is Crime and Documentary series.