Newlyweds Katie and JD have ever-escalating tension with JD's ex-wife Robin. When Robin is found shot to death, in an apparent robbery gone wrong, police arrest the killer. Or...do they? There is a demon in disguise and only a last-minute discovery will lead detectives to the truth.

Keith Gentry is shot in his sleep in the middle of the night, and left to be found by his wife, Darlene. The Texas Rangers are then brought in to investigate the murder, wading through discrepancies and lies as they narrow in on their suspect.

When a man's family and co-workers lose touch with him and can't find any trace of him for days, the police are sent to his apartment to investigate and see what they can figure it out. But what they find is far worse than any of them expected.

Random shootings, rapes, and robberies leave almost all of the residents of Phoenix, Arizona scared. On top of that, authorities are seemingly powerless against serial killers that are waging a war of terror on the streets of this Arizona city.

On an unusually warm September morning beloved yoga instructor Michael Dojaquez is found shot dead on his front porch. With a rash of violent home burglaries reported in his Tucson neighborhood in recent weeks, detectives line up the usual suspects only to find themselves spinning down the rabbit hole of a bizarre "love triangle" homicide investigation with no murder weapon and the perfect alibi.

Marc Despain is discovered by his wife Michelle, shot dead in his kitchen with the house made to look like it had been burglarized. But the evidence soon leads police to members of Marc's own inner circle, where long-standing blood feuds may have reached the boiling point and led to Marc's murder.

Tireless nurse Bonnie Woodward would never simply disappear and leave her family behind - that's not the type of person she was. After she is murdered, investigators believe they have her killer but it takes 10 years to break the case wide open.

Trenton Mallory and fiance Amber Smith of Levering, Michigan have had their ups and downs in recent years. Things finally seem to be on the upswing when "Trading Trent" as he is known because of his hobby of buying and selling guns is found shot in his bed while still asleep.

On the outskirts of Petoskey, Michigan, blue-collar worker Lyle Kopenkoskey is a well-liked man who lives a simple life with his wife of nearly 40 years, Carol. But everything changes one cold October night when Lyle is found dead only a mile from his home. With minimal evidence and a lack of suspects, investigators find themselves racing against the clock to prevent the case from going cold.

Vince is a seasoned New Orleans sportscaster, and his marriage to the much younger Liz looks like a second chance for them both. When Liz is shot point blank in the face, police pursue a notorious vagrant who fits the witness's description. But the more police dig into this murder, the game appears to be bigamy, and all the rules are off the table.

Beloved congregation member Rhonda Smith seems like the last person who'd be found shot to death at church. But as rumors of affairs begin to swirl, the handsome new pastor and a threatening stranger are just the starting point of an investigation that leads police into the mouth of madness.

In Pensacola, Florida, ex-cop and private investigator Taylor Wright is moving into a new home with the love of her love when she inexplicably disappears without a trace. At first it appears as if she may have simply run away. But when the investigation uncovers a web of deceit that includes love affairs, drug abuse, stolen money, racketeering and a whole lot of firearms, authorities begin to wonder if what they're investigating is a very clever murder.

There have only been two reported murders among the Amish in America in more than 250 years. But peace-loving Barbara Weaver, a pillar of the Amish community, is shot to death in her bed. Investigators discover that the coldest of executioners can hide shoulder to shoulder among the godly.

A family man is found shot to death and dumped in a rural orchard; it looks like a carjacking. Police meticulously piece together surveillance video that seems to show a mystery woman park his car and walk away. Police hang on doggedly to the trail of an elusive killer, who leads them on a journey that is almost too astonishing to believe.

Jennifer Cave's body is found by her stepfather in an Austin, Texas condo. What follows is a manhunt that leads authorities across the Mexican border to find the truth. Inconclusive evidence leaves many to wonder if police have arrested the right suspect.

An unsolved shooting in 2003 is linked to two similar murders, a decade later. Ballistics evidence links all three to an unusual bullet type - and even more unusual murder weapons. Law enforcement tracks down an unlikely serial killer: a man who had run for mayor and congress.

Randy Stone is the sort of big-hearted, outgoing guy everybody likes. So how did he end up shot to death on the floor of his Independence, Missouri insurance office? As his family and church grieve, a police investigation will uncover a rats' nest of lies, betrayal, and plot, along with a shocking secret kept hidden for a decade.

Wholesome wife and mother Susan Fassett is gunned down outside of her church as she leaves choir practice. Her police lieutenant husband's car is ID'd fleeing the scene. But that's just the tip of the mystery, as police dig down a rabbit hole of corruption, depravity, and surprising bedfellows to find a killer.

Pamela Hutchinson travels to Florida to attend a friend's funeral, but after extending her stay, she's found dead in her condo's bathroom. The local police launch into an investigation, unveiling a threat that spans across the United States.

Just weeks before Christmas, in the sleepy town of Early, Iowa, two men break into the home of Tracey Richter and attack her while her children hide in a nearby bedroom. Tracey shoots and kills one of them in the process, claiming self-defense. But as investigators look closer at the case, something about her story just doesn't add up.

Police in Chicago, Illinois connect a series of local murders that ends up putting them on the hunt for a serial killer. Little do they know, their target has been busy on the other side of the country, hunting women in the California desert.

An Olympic shot putt athlete is found dead in his own yard, shot multiple times. Police determine that this murder was no random act of violence, and the evidence soon uncovers a series of dark family secrets that threatens to tear them apart.

Body builder Doug and his deputy sheriff girlfriend Tracy bond over their love of weightlifting, but all they do lately is quarrel. When Doug's body is discovered encased in concrete, all fingers point to Tracy. But Tracy insists that it's physically impossible and she's being framed by the same sheriff's department she once worked for.

When a Texas oil tycoon's badly decomposing body is found in his beauty queen girlfriend's mansion, police fear the worst and issue a nationwide alert to find her. But when they learn their relationship has recently been rocky, no one is sure whether they're hunting for a victim...or a killer.

Jeremy Simko is a firearms enthusiast whose property is outfitted with every conceivable security device, from motion detectors, to cameras, to savage, barking dogs. So when his wife Julene finds him shot to death in their bed one night, the question for police is, how could an intruder possibly have gained access to the Simko bedroom? After an intensive investigation that lasts more than five years, the only thing more shocking than the culprit is their motive.

In Newport Beach, California, millionaire medical innovator Bill McLaughlin is living a luxurious life inside the gated community of Balboa Coves - until he is shot six times in his own kitchen. When the investigation uncovers a sordid story of love affairs and stolen money, authorities think they're closing in on the killer. But a lack of evidence causes the case to go stone cold for 14 years.