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.

Release : January 20, 2019

Website : https://www.oxygen.com/mark-of-a-killer

Total Eps : 34 / 43 minutes

Total Season : 4

Rating : 7.30