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‘Signs of a Psychopath’ returns for Season 11 on Aug. 11

Investigation Discovery’s true-crime series returns with a two-episode Season 11 premiere that examines notorious killers and the psychopathic traits behind their crimes.

Published Aug 11, 2026, 10:09 AM EDT | LehighValleyLive

“Signs of a Psychopath” is back with a chilling Season 11 premiere Tuesday, August 11, and the new season kicks off with two all-new episodes featuring disturbing cases and the psychopaths behind them.