Gripping detective stories, heartbreaking first-person reports and interview footage from interrogation rooms helps put the actions of serial killers into perspective.
Derrick Todd Lee, a charmer who became a lethal predator, targeted women in their homes across southeast Louisiana, leaving untold violence in his wake.
Gary Michael Hilton, the National Forest Serial Killer, targeted hikers across the Appalachian Mountains, leaving a trail of brutal murders. His final victim's bravery led to his eventual arrest.
Richard Beasley, the 'Craigslist Killer', preyed on job seekers with false promises of a new beginning, only for them to be killed and buried in shallow graves, their identities and belongings stolen.
Evading capture for decades, William Reece has become synonymous with the notorious Texas Killing Fields, a place where bodies were dumped, and family's worst fears realised.
Jason Thomas Scott, deemed a wannabe criminal mastermind by detectives, gradually escalates from voyeurism to theft, ultimately culminating in serial murder.
A family vanishes without a trace. Authorities track their suspect, Matthew Hoffman, to a home filled with heaps of dead leaves - alongside a kidnapped girl, found alive in the basement.
Stewart Rudolph Weldon's rampage in Springfield, Massachusetts, stunned America as the bound bodies of his victims were discovered hidden around his home.
Detectives scramble to unravel the mystery behind a series of deaths in a Tyler, Texas hospital's intensive care unit, relying on surveillance footage to prevent further tragedy.
Aged 20, Cody Legebokoff becomes one of Canada's youngest ever serial killers. Fuelled by a cocaine addiction, he targets vulnerable women and girls along the notorious Highway of Tears.
A would-be basketball star's failed aspirations lead Howell Emanuel Donaldson III to murder - random killings that plunge Tampa, Florida into fear and disbelief.