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?
First Air Date:
2020-08-23
Last Air Date:
2025-09-29
Status:
Returning Series
Original Country:
US
Original Language:
en
Number of Seasons:
11
Number of Episodes:
97
Director:
Stephen Dost
