Everyone in the small town of Denton is searching for Isabelle Coleman, a missing 17-year-old girl. All they've found so far is her phone and another girl they didn't even know was missing. Mute and completely unresponsive to the world around her, it's clear this mysterious girl has been damaged beyond repair. All Detective Josie Quinn can get from her is a name: Ramona. Currently suspended from the force for misconduct, Josie takes matters into her own hands as the name leads her to evidence linking the two girls.

Fourteen years ago, high school track star Sydney Adams was gunned down in Philadelphia's Fairmount Park. The investigation yielded useless clues, and the case went cold. But homicide detective Augustus Knox never gave up on finding Sydney's killer. Now retired from the police force and with only months to live, he enlists the help of private investigator Jocelyn Rush to clear the case once and for all.

FBI analyst Kassidy Bishop is assigned to the "'For You' Killer" task force after a series of sadistic murders bearing the same signature arise in different parts of the country. The homicides are both calculated and savage, occurring in different states, but bearing the same signature: the words "for you" scribbled at each crime scene. The case chills Kassidy, bringing back memories of her own encounter with a violent criminal five years earlier.

In the remote forests of Stillwater, Minnesota, you can scream for days and no one will hear you. So when the bodies of two 15-year-old girls are discovered frozen in the snow, Special Agent Nikki Hunt is sure the killer is local: Someone knew where to hide the girls and thought they would never be found. Though Nikki hasn’t been home in 20 years, she knows she must take over the case.

The beautiful young woman is perfectly still, curled up in the trunk of the car, her long dark hair hiding her face. Her cotton blouse has ridden up a little, revealing two small dots an inch apart on her back. Just like the others. Guilt has kept FBI Agent Tori Hunter away from her home in Manchester Bay, Minnesota for 20 years, ever since her twin sister disappeared on the Fourth of July, when the girls should have been together. But when she receives an anonymous newspaper clipping about another missing girl, Genevieve, Tori is dragged back to the past.

Wanted: A picturesque new town, a fresh start, and a much-needed escape from the constant reminder that the world is still full of bad guys. For FBI agent Olivia Knight, that perfect place is Belle Grove, a charming small town in Northern Virginia, a place hidden by lush greenery and away from the big city. But when Olivia finds a young girl malnourished and disheveled outside her home, she is thrown into a disturbing case. In order to catch the culprit and find the missing children in her new hometown, Olivia must dive deep into the twisted mind of a deranged serial kidnapper.

In the lonely woods around Grizzly Falls, Montana, the first body is discovered, stripped naked and tied to a tree. Alvarez and Pescoli have been hoping for a career-making case, but this is a nightmare. The killer stages car accidents on icy, isolated roads and “rescues” his victims. He toys with them, heals them, earns their trust...before subjecting them to a slow, agonizing death.

When Detective Madison Harper arrives at a remote summer camp in Shadow Falls, Northern California, her heart breaks for Jenny, the sweet little girl last seen splashing in the lake with her friends before she vanished. Peering into the silent cabins filled with rows of neatly made beds, Madison knows this idyllic place is hiding a terrible secret.

When Penny Matthews, a seven-year-old girl with blonde curls and a gap-toothed smile, goes missing in the Appalachian mountains, Detective Ellie Reeves is called straight to the scene. According to Penny’s parents, their daughter vanished after a picnic by the creek. All that’s left behind is a pink friendship bracelet etched with “Penny”.

Everyone from Wakarusa, Indiana, remembers the infamous case of January Jacobs, who was discovered in a ditch hours after her family awoke to find her gone. Margot Davies was six at the time, the same age as January—and they were next-door neighbors. In the twenty years since, Margot has grown up, moved away, and become a big-city journalist. But she’s always been haunted by the feeling that it could’ve been her. And the worst part is, January’s killer has never been brought to justice.

When the body of a woman is found hanging from a tree in her front garden, rookie Detective Morgan Brookes is first on the scene. But Olivia Potter is past saving. And when her husband and daughters cannot be traced, Morgan knows there is more to this tragedy. And then she finds them. Lying huddled together in the dark basement, each of their faces covered with a small cotton cloth, their bodies cold to the touch. But as Morgan kneels beside the family, she realizes that one of the girls is still breathing.

In The Coldest Case: A Black Book Audio Drama, homicide detective Billy Harney sends his new partner, Kate, deep undercover in a notorious Chicago drug ring. When several members of the ring soon turn up dead, Billy abruptly pulls Kate out, blowing her cover. Kate’s informant inside the gang quickly disappears. As does the ring’s black book.... When Billy can’t find the informant, he wonders if Kate is secretly harboring her, since the two grew close during Kate's weeks undercover.

It was Beth Katz’s serial killer father who made her like she is: a successful FBI agent and an unstoppable vigilante dedicated to hunting down murderers who have evaded capture. Beth will push herself to the limits to deliver justice. Even if it means killing those who deserve to die.

Deputy Shelby Lake was abandoned as a baby, saved by a stranger who found her in the freezing cold. Now, years later, a young boy is missing - and Shelby is the one who must rescue a child. The only evidence of what happened to 10-year-old Jeremiah Sloan is a bicycle left behind on a lonely road. After a desperate search fails to locate him, the close bonds of Shelby’s hometown begin to fray under the weight of accusations and suspicion. Everyone around her is keeping secrets.

Blake Wilder is plagued with nightmares from her dark and twisted past. Fourteen years ago, her entire family was taken from her. Her parents murdered and her sister taken. At the age of 22, Blake joined the FBI in hopes of one day discovering the truth behind the mysteries of her own past.