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Texas authorities have a killer riding the rails and leaving a literal trail of bread crumbs after eating at victims' tables; when more murders are linked, the FBI names a Most Wanted suspect and a national manhunt for The Railroad Killer ensues.

Mark of a Serial Killer

An Appetite for Murder

When the Hillside Stranglers are caught police realize they still have another serial killer running rampant in Los Angeles; he tortures and toys with his model victims while keeping pieces of their jewelry as he snaps their last photo ever.

Momentos of Murder

A killer hijacks the highways of Sacramento as several women are found strangled with their clothing cut into precise but odd patterns; a survivor leads police to a sports car driving deviant posing as a good samaritan to poach potential victims.

Pattern of Murder

Dallas police discover three women murdered with their eyes surgically removed; police believe they have a deranged doctor on the loose until two rookie cops find themselves on the trail of a man with a talent for taxidermy and a hatred for women.

An Eye for Murder

In New Jersey four bodies are found dismembered, bagged, and thrown in roadside garbage cans; the "Last Call Killer" hunted his victims openly in piano bars but no one suspected he could be hiding in plain sight, working as a local nurse.

The Last Call Killer

In 1990, a serial killer terrorizes the University of Florida's campus, killing five students in under four days; the Gainesville Ripper leaves behind a crime scene where all the victims have been stabbed but the females have been posed like dolls.

Posed to Kill

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Following serial killers on the trails of their obsession and taking a deep dive into the killers' depraved psyches to reveal their darkest secrets as investigators close in to end the killers' reign of terror.

S1 E5 | Momentos of Murder

E6 | An Appetite for Murder

E5 | Momentos of Murder

E4 | Pattern of Murder

E3 | An Eye for Murder

E2 | The Last Call Killer

E1 | Posed to Kill