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World's Most Evil Killers poster
Free in US
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World's Most Evil Killers

8.2
10 seasons
88 episodes
Returning Series
Documentary

Plot Summary

World’s Most Evil Killers delves into the gripping real-life stories of the world’s most terrifying and prolific killers. From Fred and Rose West to Ed Gein – The Clown Killer – and even to The Milwaukee Cannibal. Each episode focuses on one notorious killer and features authentic first-hand accounts of their behavior, from detectives who ran the case, journalists who reported on the stories, relatives, and at times survivors, alongside series experts who provide analysis. These criminologists, crime journalists and psychologists examine how the infamous killers made headlines both nationally and internationally and why they still continue to evoke fear and fascination in the public eye.

First Aired:March 11, 2018
Last Aired:March 11, 2025
Episode Runtime:Unknown
Networks:
Sky Witness, Sky Crime, Pick

Where to watch free (US)

Hoopla
Plex
Plex Channel
Fawesome
The Roku Channel
Fandango at Home Free
Pluto TV
Amazon Prime Video Free with Ads
Tubi TV

Seasons (10)

Season 1
10.0

Season 1

8 episodes

Aired: 2018

World’s Most Evil Killers delves into the gripping real-life stories of the world’s most terrifying and prolific killers. From Fred and Rose West to Ed Gein – The Clown Killer – and even to The Milwaukee Cannibal. Each episode focuses on one notorious killer and features authentic first-hand accounts of their behavior, from detectives who ran the case, journalists who reported on the stories, relatives, and at times survivors, alongside series experts who provide analysis. These criminologists, crime journalists and psychologists examine how the infamous killers made headlines both nationally and internationally and why they still continue to evoke fear and fascination in the public eye.

Season 2

Season 2

10 episodes

Aired: 2018

World’s Most Evil Killers delves into the gripping real-life stories of the world’s most terrifying and prolific killers. From Fred and Rose West to Ed Gein – The Clown Killer – and even to The Milwaukee Cannibal. Each episode focuses on one notorious killer and features authentic first-hand accounts of their behavior, from detectives who ran the case, journalists who reported on the stories, relatives, and at times survivors, alongside series experts who provide analysis. These criminologists, crime journalists and psychologists examine how the infamous killers made headlines both nationally and internationally and why they still continue to evoke fear and fascination in the public eye.

Season 3

Season 3

10 episodes

Aired: 2019

An in-depth look at the lives and crimes of some of the World's most evil killers.

Season 4

Season 4

10 episodes

Aired: 2020

An in-depth look at the lives and crimes of some of the World's most evil killers.

Season 5

Season 5

10 episodes

Aired: 2021

An in-depth look at the lives and crimes of some of the World's most evil killers.

Season 6

Season 6

10 episodes

Aired: 2021

An in-depth look at the lives and crimes of some of the World's most evil killers.

Season 7

Season 7

10 episodes

Aired: 2022

An in-depth look at the lives and crimes of some of the World's most evil killers.

Season 8

Season 8

10 episodes

Aired: 2023

An in-depth look at the lives and crimes of some of the World's most evil killers.

Season 9

Season 9

10 episodes

Aired: 2024

A detailed look at the lives of the world's most evil killers, and the despicable crimes they committed.

Season 10

Season 10

5 episodes

Aired: 2025

Production

Woodcut Media