Season 9
10 episodes
21 min. per episode
Where to watch
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A brilliant psychologist uncovers chilling patterns in notorious killers, blurring the line between fascination and fear as danger lurks nearby.
Episodes
After the murder of a couple and the disappearance of their adult son, detectives wonder who could have acted with such rage. However, when the son resurfaces, it isn't long before investigators come face to face with a true psychopath.
When a loving husband turns up murdered in his Loveland, Ohio home, the prime suspect is his troubled wife, who claims to have little recollection. Detectives uncover her story is nothing but the manipulation of a vindictive person.
A teenage couple goes on the run from Lawrenceville, Georgia. A search leads officers to the girl's grandparents' home, where they find the bodies of the elderly couple and uncover a fantasy killing concocted by the lovers.
Terror rocks an Ohio town when a mother, her two kids and a close friend vanish. Fearing foul play, investigators track down the prime suspect and uncover a house of horrors.
Police catch a break on three St. Louis cold case murders when emerging DNA technology makes a match: a 73-year-old frail man whose harmless facade is hiding a vicious individual.
For every psychopath there are signs. Would you see them? Revisiting some of the most dangerous killers in modern history to see which psychopathic traits they exhibited. Featuring real archive footage.