‘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.
“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.