Signs of a Psychopath

Synopsis

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

Number of Seasons: 11

Number of Episodes: 97

Networks: Investigation Discovery

View Technical Specifications on IMDb

Top Cast

N.G. Berrill as Psychologist
Samantha Turret as Reporter

Seasons

Season 1 (2020) - (9 Episodes)

Season 2 (2021) - (6 Episodes)

Season 3 (2021) - (7 Episodes)

Season 4 (2022) - (10 Episodes)

Season 5 (2023) - (11 Episodes)

Season 6 (2023) - (10 Episodes)

Season 7 (2024) - (9 Episodes)

Season 8 (2024) - (10 Episodes)

Season 9 (2025) - (10 Episodes)

Season 10 (2025) - (15 Episodes)

Season 1 (2020)

No overview available for this season.

Episodes:

Ep. 1: Chase Me (2020-08-23)

A 50-year-old woman is found dead in her home. All that's left behind is a note that reads, "Chase me." But when detectives uncover the killer, they quickly discover they have come face to face with a remorseless psychopath.
Ep. 2: Into the Woods at Midnight (2020-08-30)

Residents of a quaint village are terrified when a local innkeeper and two others are found brutally murdered. Detectives in Maine must follow the depraved killer into the woods at night as he leads them to where he killed and buried a fourth victim.
Ep. 3: I'm Not the Monster I Was (2020-09-06)

An unapologetic 14-year-old boy confesses to the murder of his best friend. Twelve years later, he's back in court with chance at a reduced sentence. Has this 26-year-old really changed? Or is he the same meticulous, cold-blooded killer he always was?
Ep. 4: Where Evil Grows (2020-09-13)

A charming 20-year-old wants to help authorities with a murder investigation. He claims to have met one of the three victims and says he has no knowledge of the crime, but detectives suspect otherwise. Could this intellectual be hiding a dark side?
Ep. 5: I Dug a Hole and Said a Prayer (2020-09-20)

When police question a man in his pregnant ex-girlfriend and her young son's disappearance, they discover he has a terrifying capacity for violence. Later, a seemingly innocuous man searching for a missing girl could be a real-life monster.
Ep. 6: I Could Hear Her Calling Me (2020-09-27)

No overview for this episode.
Ep. 7: I Am The Devil (2020-10-04)

A missing Colorado woman's roommate claims she'll do anything to help find her, but investigators fear they may have a rare female psychopath on their hands. Later, a killer's angry outbursts could be real, or just an act put on by a manipulator.
Ep. 8: Now They Lay Me Down To Sleep - Part 1 (2020-10-18)

After a house fire in Texas, suspicion lands on John Hummel when his family's brutally murdered bodies are discovered in the ashes, and he doesn't blink an eye. Now an inmate on death row, he grants a final interview weeks before his execution.
Ep. 9: Now They Lay Me Down To Sleep - Part 2 (2020-10-25)

Death row inmate John Hummel agrees to a final interview weeks before his execution.