Mark of a Killer - Season 3

A killer is murdering and mutilating young women along the Route 40 corridor in Delaware. But when investigators set up an undercover operation, the hunter soon becomes the hunted.

After multiple men are discovered brutally murdered, investigators determine that each victim was last seen with a handsome stranger they met in a bar. Police ask the public for help in tracking down a dangerous drifter before he kills again.

A series of women in the Seattle area are found brutally murdered and police realise they may have a killer stalking area nightclubs, charming his victims into submission.

Chicago police investigate the murders of several women, whose barefoot bodies are discovered in abandoned buildings.

Chicago detectives believe a serial killer is using the classified ads to lure and murder his victims. The investigation is set ablaze when flames obliterate evidence, until police make a shocking discovery.

A killer crisscrosses the Midwest leaving a string of victims along the interstate, but when he realizes investigators are hot on his trail the murderer suddenly changes his mark.

A cold blooded killer conceals his victim's bodies with trash, discarding them like garbage in the back alleys across Los Angeles.

A Houston killer taunts the media and authorities as he uses homemade ligatures to murder his victims.

El Paso investigators race to track down a ruthless killer that is burying his victims in shallow desert graves, dead or alive.

Chaos descends on Phoenix as two serial killers compete for the media's attention and the bodies pile up faster than the police can investigate.