Police find a string of murdered women in shallow graves in very remote areas of the Alaskan wilderness after months of searching, police zero in on a local family man living a double life that no one suspects.
A rash of young men goes missing around Chicago during the 1970s when bodies start washing up in the river, a pattern emerges a small piece of evidence leads police to the home of a model citizen, where his furnace puts the suspect in the hot seat.
In the 1990's, New York is on edge as a killer leaves coded clues at crime scenes and declares his compulsion to choose victims by their birth signs.
Brooklyn shop keepers are afraid of closing time as a killer shoots his victims while locking up their stores.
In the summer of 1976, the NYPD are chasing a man shooting at couples in parked cars with a gigantic, .44 caliber handgun he taunts the city with terrifying letters until police get a lead about a suspect who has shot a neighbor's dog.
Minnesota police hunt for a killer caller who confesses to a string of murders in a chilling, high-pitched voice, begging for forgiveness no one can identify him until one woman survives a brutal attack.
When a schoolteacher is gunned down in public, a known felon's DNA and phone records link him to the crime however, after investigators arrest the man, they discover the real killer might actually be someone else entirely.
A crazed driver goes on a seven-hour shooting spree, killing six people and critically injuring two.
After getting a call that a wife and mother had been missing for 10 years, sheriffs launch an investigation that uncovers a web of lies that leads them to the truth.
Investigators speak for the first time on one of the most baffling cases they've encountered, exposing the truth about what happened to Shanann Watts and her two daughters at the hands of a seemingly devoted husband and father, Chris Watts.
After the naked body of an Ohio State senior is found, investigators bring in a suspect for questioning they play a dangerous game of give and take hoping to get the truth and bring justice to the victim and her family.
When a woman is found dead in her home, police aren't sure if it's an accident or a murder until they get an unexpected call, from an unexpected person.
After a hard working Virginia couple is brutally murdered on the eve of their anniversary, the ensuing investigation goes cold until detectives find the most unlikely of suspects.
A year after a popular high school senior goes missing, a witness comes forward claiming to know who is responsible for her disappearance and detectives must unravel a web of lies in order to learn the truth.
After authorities finally identify the prolific Green River Killer, it becomes a cat-and-mouse game as they must get inside his mind to get him to lead them to the remains of other missing women.
When a string of elderly people are brutally murdered in their homes along the Mississippi River, a Task Force is formed to hunt down a serial killer before they can strike again.
An accidental death in upstate New York becomes a possible murder scene, and a wife and mother provides a crucial piece of evidence investigators confront the darkest side of humanity to discover an unspeakable truth.
Police suspect a mother of two has relapsed into drugs when she disappears, but her family and friend suspect foul play.
Although a man claims he accidentally shot himself, the crime scene does not corroborate his story, and a love triangle unfolds.
A wife returns home to find her husband shot dead, and detectives search for the truth for two years.