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.

When two young boys discover human bones buried beneath a tree in a trailer park, Detective Josie Quinn races to join her team at the scene. She used to play in those woods as a child, happier outside and away from her abusive mother, Belinda Rose. Josie’s past crashes into her present when a rare dental condition confirms the bones belong to a teenage foster-child who was murdered 30 years ago. A girl named Belinda Rose.

Watching her friend dragged away in handcuffs, Josie couldn't believe for one second that Gretchen had killed that poor boy. Confession or not, someone else was involved. She would find out who... When the body of a young student is found on the driveway of a local Denton home, a photograph pinned to his collar, Detective Josie Quinn is first on the scene. The house belongs to Gretchen Palmer, a dedicated member of Josie’s team, missing for the last 24 hours. Working around the clock, Josie is stopped in her tracks when Gretchen hands herself in to the police. 

Arriving with her partner Noah for dinner at his family’s immaculate countryside home, Detective Josie Quinn is devastated to find Noah’s mother, Colette, lying lifeless in the back garden, her mouth clogged with soil. Searching the house for answers, Josie’s team don’t know what to make of the rosary beads buried in the dirt near the body or the hidden file labelled “Drew Pratt”, the small town of Denton’s most famous missing person.

When seven-year-old Lucy Ross is snatched from the carousel in Denton city park, Detective Josie Quinn joins the frantic search. She’s the one who finds Lucy’s sparkly butterfly backpack abandoned by the ticket booth, a note with a devastating message stuffed inside: Answer your phone, or your sweet little darling will die.... The next day, Lucy’s parents are filled with hope when they pick up a call which they think is from their babysitter - but instead it’s a chilling male voice on the line.

When a park ranger stumbles across the bodies of Valerie and Tyler Yates by a creek in the small town of Denton, Detective Josie Quinn is first on the scene. Still reeling from the news that her abusive mother is dying, Josie suspects this is more than just accidental poisoning, and she’s right: Someone jammed a crudely carved pendant necklace down Valerie’s throat before she died. Combing the area, Josie’s team discover a third sleeping bag indicating there could have been an extra guest around the fire that night. A lucky escape? A missing victim? Or a suspect on the run?

Heavy rain pours on the small town of Denton causing the riverbanks to break and the body of a young girl to float quietly to the surface. With no crime scene to examine, the odds are against Detective Josie Quinn and her team. Mercifully, the victim’s body is perfectly preserved, right down to the baseball patch on the jacket she is wearing. Josie can’t hide her devastation - her dead ex-husband, Ray, owned one just like it.  

The body of a young girl lying face down in a swimming pool - white tennis shoes still on her feet, chestnut hair fanned out like a halo - is the last thing Detective Josie Quinn expects to find on an early morning visit to see her brother before class at Denton University. But when she recognizes the girl’s face as she drags her limp body from the water, there’s only one question racing through Josie’s mind: How does a champion swimmer accidentally drown? 

When 12-year-old Holly Mitchell’s fragile little body is found on the steps of a mountainside church in the small town of Denton, a doll made from pine cones clasped tightly to her chest, Detective Josie Quinn rushes to attend the scene. She knows this little girl’s angelic face; her mother had offered Josie help when she’d needed it most. Searching the girl’s house, Josie is devastated to find that Holly’s mother is dead, too, and her little sister is missing. 

On her first day back with the Denton PD after a major trauma, Detective Josie Quinn is on the hunt for a missing woman, Krystal Duncan, the mother of one of five children killed in a devastating school bus crash. Hours later, Josie finds Krystal’s body beside her daughter’s grave, her lips sealed together forever with wax.

When Denton’s most loved TV presenter returns home to find his wife dead at the dining table, it shatters the close-knit community. Beautiful and absolutely besotted with each other, Beau and Claudia Collins were idolized for being the perfect couple. But the devastating scene Detective Josie Quinn finds in their remote hideaway has her asking what dark secrets lurk beneath the surface of this seemingly flawless marriage.

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.

On a winding mountain road into the town of Denton, Pennsylvania, Detective Josie Quinn finds the body of a local teenage girl, Dina Hale. The sight of plum-colored bruises gathering around the girl’s neck pierces Josie’s heart, but the discovery of a second girl’s empty purse in the dirt nearby gives her a flicker of hope that one person, at least, made a lucky escape. Dina’s parents are grief-stricken as the town rallies together in a desperate search for the second girl, who waitressed with Dina. The two best friends were on their way to a shift when they were attacked. 

When Claire sees a car full of children careen into a river, she rushes to the rescue. But the driver, a mother named Leah Holloway, prefers to drown. For Claire and her ex, Detective Connor Parks, it doesn't add up. What would motivate a woman with a beautiful family and a successful career to resort to such unspeakable extremes? What Connor finds out confirms Claire's suspicions of something dreadful behind Holloway's picture-perfect facade: a link between the terrified mother and a serial strangler targeting Sacramento soccer moms.

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.