Signs of a Psychopath - Season 9

After the murder of a couple and the disappearance of their adult son, detectives wonder who could have acted with such rage. However, when the son resurfaces, it isn't long before investigators come face to face with a true psychopath. (imdb.com)

When a loving husband turns up murdered in his Loveland, Ohio home, the prime suspect is his troubled wife, who claims to have little recollection. Detectives uncover her story is nothing but the manipulation of a vindictive person. (imdb.com)

A teenage couple goes on the run from Lawrenceville, Georgia. A search leads officers to the girl's grandparents' home, where they find the bodies of the elderly couple and uncover a fantasy killing concocted by the lovers. (imdb.com)

Terror rocks an Ohio town when a mother, her two kids and a close friend vanish. Fearing foul play, investigators track down the prime suspect and uncover a house of horrors. (imdb.com)

Police catch a break on three St. Louis cold case murders when emerging DNA technology makes a match: a 73-year-old frail man whose harmless facade is hiding a vicious individual. (imdb.com)

A young man's confession to participating in a plot to murder another teenager stuns police of Ocala, Florida. As detectives dig in, they uncover a sadistic plot involving a manipulative ex-girlfriend with the desire to kill. (imdb.com)

When a woman disappears, detectives identify her manipulative, ex-convict husband as the prime suspect and uncover evidence suggesting he's a cold-blooded psychopath. (imdb.com)

A teenage girl goes missing from Belmar, New Jersey. Unable to find her, detectives obtain a secret recording that uncovers an evil plot by a person with wicked needs. (imdb.com)

After the murder of a successful executive one night in Connecticut, her case goes cold. Four years later, a troubled man appears, ready to confess. Investigators uncover that this was no ordinary murder, and that he is an impulsive psychopath. (imdb.com)

When being interviewed by police, psychopaths often use manipulation to thwart the investigation. Experts explore the anatomy of the key manipulative tactics of psychopaths, and how they use them for their own sinister gain. (imdb.com)