This harrowing half-hour archive series revisits some of the most brutal killers in modern history, reviewing news footage and the words of the killers themselves to see which terrifying traits each killer exhibited. What are the signs...of evil?

Release : August 23, 2020

Website : https://www.investigationdiscovery.com/tv-shows/signs-of-a-psychopath/

Total Eps : 71 / 23 minutes

Total Season : 8

Rating : 8.40