Murder by Numbers - Season 2

A monster hunts the streets of Baton Rouge, leaving three women raped, murdered and sadistically posed and everyone in town on edge. But when one brave woman survives a vicious attack, evidence leads police to the hunter and eventually justice.

A twisted murderer preys on young women in Bellevue, Wash., leaving their bodies sadistically posed. As police work to draw a crucial connection, an unconventional clue surfaces and leads them to an unlikely killer hiding in plain sight.

When a sheriff's wife answers the door of her Alexandria, Virginia home to a blaze of gunfire, theories buzz throughout the community. That is until more citizens are shot at their own front doors, leaving everyone wondering who could be next.

Within a month, four men in Orange County are brutally stabbed by a mysterious man. No one makes a connection to a gruesome double murder of a mother and son two months earlier - except the man sitting in prison for killing his own family.

Dallas has its dark side, but nothing compares the horror of a series of women found murdered with their eyeballs surgically removed. A pair beat cops use their street savvy to lead detectives to a sadistic killer and his bizarre motive.

A man is murdered by an intruder leaving his wife to witness a disturbing detail: the killer was wearing a clown mask. And when three more are killed by the same deranged clown, police realize they're dealing with a serial killer.

The busy streets of Atlanta, GA are shaken as horror of the "Necktie Killer" strikes the city with fear. Detectives from neighboring counties piece together correlative clues and distinctive apparel left behind at each crime scene.

A series of murders in California bear eerie similarities, but police have trouble connecting them—that is until unique ballistics, mysterious surveillance, and a bloody cell phone lead them to three criminals on a deadly revenge spree.