Season 1
2016 | 8 Episodes
Country: United Kingdom
Type: unscripted
Status: Current
Language: English
Release Date: November 30, 2016
Also Known As: World's Most Evil Killers
Production Co: Woodcut Media, Sky Television
2016 | 8 Episodes
2018 | 10 Episodes
2019 | 10 Episodes
2020 | 10 Episodes
2021 | 10 Episodes
2021 | 10 Episodes
2022 | 10 Episodes
2023 | 10 Episodes