Murder By Numbers

When two bodies are found inside a burning building and the third flatmate is missing, police aren't sure if they're searching for the killer or another victim.

When firefighters are called to a blazing truck, they find the bullet-ridden bodies of Robert and Dorothy Pape in the house. Police then make a shocking discovery.

A woman is found murdered on the Appalachian Trail and her husband is missing. As more bodies disappear, is a deadly predator stalking the woods?

When a woman is found brutally murdered in her home, a local troublemaker is a suspect. But when more bodies are discovered, police fear a serial killer is at large.

When a local college student doesn't return home from her morning run, her friends are quick to contact the police. Has a local stalker become a killer?

When a sheriff's wife is the victim of a cold-blooded murder, theories buzz throughout the community. Is a serial killer lurking the streets?

Within a month, four men in Orange County are brutally stabbed by a mysterious man. Are the killings connected to a double murder that occurred months earlier?

A monster hunts the streets of Baton Rouge, leaving three women raped and murdered. One woman survives a vicious attack - can she help police find the killer?

A twisted murderer preys on young women in Bellevue Washington. An unconventional clue leads police to an unlikely killer hiding in plain sight.

A series of murders in California bear eerie similarities, but police can't connect them. Until a bloody mobile phone leads them to three criminals on a revenge spree.

A series of women are found murdered with their eyeballs surgically removed. When police finally track down the killer they also discover a very bizarre motive.

A man is murdered by someone wearing a clown mask. When more people are killed by the same deranged clown, police realise that a serial killer is on the loose.

The city of Atlanta is shaken by the fear of the Necktie Killer. Detectives piece together correlative clues and distinctive apparel left behind at each crime scene.