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7.0

Signs of a Psychopath•Season 11•Episode 13

That's What You Do With a Knife

7.0/10 · 1 votesSep 29, 202621 min

Ranked #15 of 19 in Season 11•−0.8 vs season avg

When officers arrive at a suburban home regarding a felonious assault, they find a bloodied and lifeless woman in her minivan. Detectives later interview her estranged husband, revealing a rage-filled psychopath with a revenge fantasy inspired by a movie.

Previous episodeE12 · The Biggest Adrenaline Rush Next episodeE14 · Can You Count Bullets?

Seasons11

All 1 2 3 4 5 6 7 8 9 10 11

Season 11 Episodes19

I Guess I'm a Maniac

I Don't Belong Out Here

I Can't Stop Myself

Violence Is What I'm Fixed On

I Think I Can Outsmart God

I Just Wanted To Hurt Her

I've Got a Criminal Mind

I Wanted To Keep Her

I Had Everybody Fooled

The Apocalyptic End

Something Took Control of Me

The Biggest Adrenaline Rush

E13 7.0Now viewing

That's What You Do With a Knife

Can You Count Bullets?

Everybody Believes in Bad People

Every Time Was Like Christmas

He Got Such a Rush From It

Evilness Inside My Head

That's When My Nightmare Started

Cast1

N

N.G. Berrill

Psychologist

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Episode Summary

"That's What You Do With a Knife" is episode 13 of Signs of a Psychopath season 11. It scored 7.0/10 from 1 votes, ranking #15 of 19 episodes this season (season average 7.8). It aired on September 29, 2026.

Next: E14 · Can You Count Bullets?Best of Season 11