Best Psychological Thriller Series You Haven't Seen Yet

Ooh, you're in for a treat—there are some hidden psychological thriller gems that tend to fly under the radar but totally mess with your mind in the best way. Here are some of the best psychological thriller series you probably haven't seen yet.

1. “The Sinner” (USA Network) - Each season explores a new crime and the "why" behind it, not just the "who."Twisted motives, haunting backstories, and Bill Pullman’s hypnotic performance.
2. “Homecoming” (Amazon Prime Video) - A mysterious facility that helps soldiers transition back to civilian life—until things get... off.
3. “Marcella” (Netflix) - A former detective with blackouts returns to solve a case eerily similar to one she worked on years ago.
4. “Requiem” (Netflix) - A cellist investigates her mother's suicide and discovers eerie ties to a missing child case from decades ago.
5. “Tell Me Your Secrets” (Amazon Prime Video) - A woman with a dark past, a serial predator, and a grieving mother—every character has layers of secrets.Twisty, slow-burn suspense that escalates episode by episode.

Want more *international* thrillers or ones with *supernatural* twists? Or even ones with only 1 season so it’s binge-and-done?