Watch Mark of a Killer Season 4 Online

All serial killers commit murder to satisfy their grand fantasies, but the murderers featured in this true-crime docuseries take it one step further, committing heinous acts that allow them to extend their fantasies and relive the excitement of their crimes again and again. Read More

Watch Mark of a Killer online. Featuring , Mark of a Killer has 3 seasons and 21 episodes in total. It is available for streaming online in the USA on 11 services such as Apple TV and Amazon Video. It is classified as Documentary and Crime genre series and the average rating across the web is 8. The TV series was first aired on 2019. Read Less