Badge of Terror: A police officer descends into depravity when he conducts voodoo rituals with prostitutes, leading to the abduction and murder of two women. (S4 Ep10)
Conman Casanova: A mysterious conman targets beautiful women through an online dating service, plying his charms to win their affections, then robbing them blind. (S4 Ep9)
Intimate Sacrifice: A twisted blackmailer extorts sexual bribes from women who are willing to sacrifice their dignity to protect those they love. (S4 Ep6)
Thrill Killer: A Charles Manson copycat and his henchmen stage home invasions and plot a massacre on Valentine's Day for their own sadistic pleasure. (S4 Ep5)
Lethal Lover: A playboy cruises the bars of Texas, seducing successful women with big bank accounts, while concealing his sinister intentions and a deadly weapon. (S4 Ep4)
Muse to Murder: A troubled young man becomes enraged when he is rejected by the love of his life. Craving her long brown hair, he rapes and murders women that remind him of her. (S4 Ep3)
The Devil's Disciple: A conman posing as a preacher entices victims to a bogus farm with the promise of good jobs - then hunts them down like wild animals. (S4 Ep1)
911 to Murder: A criminal begins a new life as an emergency medical technician. Meanwhile, women are being assaulted and killed - in the same neighbourhood where the ex-convict works. (S3 Ep20)
Hell on Wheels: When two teens go missing, everyone presumes the young lovers are runaways - until a cryptic phone call leads to a grisly murder scene. (S3 Ep19)
Last Call Killer: In the early 1990s dismembered bodies of gay men are found along New Jerseys roads. New forensic technology leads investigators to a surprising killer. (S3 Ep18)
To Kill and Kill Again: The number of deaths at an Indiana hospital have quadrupled, and a male nurse with a sweet bedside manner becomes the focus of the police investigation. (S3 Ep17)
A Killer in Disguise: In March of 1994, Orange County, California is being targeted by a gunman. As each attack grows increasingly more violent, police must stop him before he turns deadly. (S3 Ep16)
Captured Alive: When a Witt, Texas home is destroyed by fire in 2011, police are unaware that an arson investigation will soon lead them on a statewide hunt for a sexual predator. (S3 Ep15)
A Deadly Burning Passion: A serial arsonist is getting sexual gratification by setting fires across Washington, DC. As the death toll rises, investigators race to catch the culprit. (S3 Ep14)
The Bayou Strangler: A predator preys on the vulnerable young men of Louisiana's streets, luring his victims with a cunning ruse and leaving a trail of bodies in his wake. (S3 Ep13)
Trained to Kill: A doctor is attacked in his driveway by masked assailants. What police uncover is a rogue ex-cop with a penchant for violence, who may be connected to more unsolved crimes. (S3 Ep12)
Hunting Humans: A rural community is plagued by strange murders. Police suspect a serial killer, but a pair of hunters have grown tired of their animal prey... (S3 Ep11)
A Wolf Among the Sheep: A popular teen disappears into thin air. When her naked body is discovered a week later, police must find her killer before fear rips the quiet community apart. (S3 Ep10)
Like a Hurricane: After a hurricane, a man rolls into town looking for work in the post-storm clean up. His dangerous past flares up when a fire claims the life of a beloved mother. (S3 Ep9)
The Toy Box Torturer: In 1999 women started going missing from the streets of Albuquerque. Only when Cynthia escapes do the police realise they are hunting a sexual torturer. (S3 Ep8)
Corridor Killer: A serial rapist uses the cover of gangland violence to hide his killing spree. When a woman survives his assault, police finally have the key to ending 15 years of terror. (S3 Ep7)
Death and Dismemberment: A woman discovers human remains in a driveway. The homeowner refuses to talk but what police uncover will expose a dark history of violence and murder. (S3 Ep6)
B.T.K.: A teenage boy comes home to find his family slaughtered. The murderer taunts police for decades. Can the cops finally catch the infamous BTK? (S3 Ep4)
Baseline Killer: A serial rapist and killer terrorises women for months. Eluding capture, his attacks get bolder, but he doesnt expect new police technology to foil him. (S3 Ep2)
Natural Born Killer: A daughter moves to be closer to her mother and partner, only to lose them to a brutal killer. A state-wide manhunt finally brings down this natural born killer. (S3 Ep1)
The Man without a Conscience: Meet Michael Ritter, the man who could make money disappear. This is the story of how $200 million vanished in a flash. (S2 Ep6)
The Cold Blooded Charmer: Highly intelligent, immaculately presented and completely charming: how do you catch a murderer who hides in plain sight? (S2 Ep5)
The Inhuman Trafficker: A Korean man lures women to America with the promise of a better life, but instead they find themselves locked away as victims of slavery. (S2 Ep4)
The Centre City Stalker: There is terror on the streets when a dangerous stalker evades capture. How will the police put an end to this game of cat and mouse? (S2 Ep2)
The Schoolboy Shooter: Why does a 14-year-old take a gun to school? Speaking to victims of the Heath High massacre, we ask what compelled Michael Carneal to kill his fellow pupils. (S2 Ep1)