A wounded and bleeding Charles Stuart calls 911 with a terrified tale of carjacking, that results in the death of his pregnant wife. As police mount a manhunt for the described killers, something just doesn't add up.
Brian Barrett was shot to death just before he was supposed to meet his online dream girl. To catch the killer, police must venture into the murky world of chat rooms - but how can they solve the case when the killer is a virtual shadow?
When wealthy couple Dennis and Merna Koula are violently gunned down in their own home in La Crosse, WI on May 24, 2010, the police suspect that it was a home invasion, but the investigation reveals signs of an execution-style killing.
When Susan Smith from Kentucky becomes an informant for the FBI, she mysteriously disappears without a trace in 1989, but her sister Shelby insists that Susan's mystery boyfriend, who was also an FBI agent, is responsible for her disappearance.
Day laborer Abraham Shakespeare wins $30 million in a lottery drawing, then he goes missing; while his family hopes he's living on a beach somewhere, his body turns up buried in a backyard.
When Derrick Dorsey finds his wife, Kim, dead in their bed, he tells 911 he thinks she's committed suicide; police find it a strange conclusion to draw since there are bullet holes in the wall and zip ties around Kim's wrists.
Robert Spangler's wives all seem to end up dead.
Wealthy businessman Ben Novack, Jr. is found beaten to death In New York.
Norma is found dead, her head wrapped in duct tape, in a baffling crime.
Melissa Oxley is woken in the middle of the night to a shotgun blast and the smell of gunpowder, with her husband Ben, dead beside her. The killer has vanished, but the bigger mystery is why was she left alive?
Shortly after Devon Guzman moves in with her partner Keary, she is found dead in the backseat of her car. Something doesn't add up, especially when police find out her relationship is an "open" one with more than one jealous lover.
Single mother Dana Laskowski is found strangled to death in her home one night when her triplets are visiting their father. The crime scene suggests she knew her attacker and it seems there are a few people who had an unhealthy obsession with her.
When two friends are shot to death in their beds, the words "Satan loves you" is left as a message in the kitchen. As the case widens, it becomes clear that there are several people who may have wanted these women dead, and Satan isn't one of them.
When Bob Dorotick is found dead by the side of a road with tire tracks leading from the scene, it's obvious he was murdered. But what's mysterious is that he wasn't hit by a car, he was bludgeoned, drugged and strangled. Who wants him dead?
Jack Jessee is fighting a losing battle with cancer, but his remaining time is cut short when he is stabbed to death in his own home. Police quickly decide this is no random robbery, but all the best suspects have iron-clad alibis.
After a late night pizza run, Dana Woods and June Guerry go missing. As their frantic parents search for them, they see a strange man driving Dana's car, and the girls are never seen alive again.
When Carolyn Krizan-Wilson claims a barefooted burglar shot her husband Roy McCaleb to death, police spend years trying to track down the mysterious killer. It is only with the onset of dementia does Carolyn finally reveal the missing clue.
When the severed head of Hervey Medellin is discovered by a sniffing dog in the famous Hollywood Hills, the violence of the dismemberment brings tabloid claims of serial killers and drug cartels - but who really wanted Hervey dead?
Mathew Solomon can't find his wife after an argument on Christmas Eve. After a tearful press conference and a city-wide search, she is found strangled to death and abandoned in a garbage bag, and the true murder behind her murder is anything but festive.
When exotic dancer Anson "Buzz" Clinton is found shot to death by the side of the highway, it looks like a drug deal gone bad. But the investigation leads police offers into a murder plot involving crooked lawyers and a family bent on revenge.
Dancer Stephanie Bruner walks out of her husband during a Colorado blizzard and is never seen alive again. When search parties find her body in a river, the manhunt changes to a murder investigation.
When Robert Limon is shot working in a remote train yard, surveillance reveals both a limping man and a motorcycle heading to the crime scene. In an investigation full of secret passion and lies, police must figure out which one is the killer.
Happy couple Billy and Billie Jean are found shot and stabbed in their home, with a baby still cradled in Billie Jean's arms. The investigation reveals the reason might be found in a bizarrely bitter online feud.