When a body is discovered, bled dry on a beach, the sleepy seaside town of Weston-super-Mare wakes up to a nightmare. For Detective Inspector Louise Blackwell, recently transferred to the town she last saw as a child, it’s her first case on the job. The victim - Veronica Lloyd, an elderly volunteer at a local church - has puncture wounds to her hands. When a priest is found killed in a nearby church in a similarly grisly condition, it becomes clear that Blackwell is dealing with a righteous and bloody murderer. But the victims aren’t random.

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?

Zoe is a wife and a mother. Or so she’s been told. Ask her for more than that and she couldn’t tell you. The blow to her head wiped her memory clean. Zoe knows the blood on her shirt isn’t just her own. After she was found stumbling out of the woods, the police ran tests. They say it belongs to her missing daughter. Zoe is trying to piece together what her daughter’s face looks like, but all she can conjure up is a white-hot panic. A fear that her child is in desperate need of her help.

The body of college student Chrissie Lowe lies curled up in a ball - long red cuts along her arms suggesting how she had met her death. Detective Jenna Alton is called in to investigate. Purplish bruising seen on Chrissie's upper arms makes Jenna believe there is more to Chrissie's death than others suspected, and she soon finds herself following the trail of the student's last few moments, leading her to the scene of a party that had ended just hours before Chrissie's body was found.

Since Alice’s fiancé walked out on her, she never thought she’d meet "The One". But all that changes when she meets Dominic. Handsome, charming, and kind, Alice can’t believe her luck when he proposes a few months later and moves into her West London home. Three years on, Alice’s catering business is thriving and she is married to a man she adores. So when she sees that little blue line, it should be the happiest moment of her life: they’re going to have a baby. But then the police knock on her door and Alice’s whole world is turned upside down...Dominic is dead.

A family is gunned down in the snow, but one of the children survives. Three years on, that child takes revenge, and the Snow Killer is born. But then, nothing - no further crimes are committed, and the case goes cold. 50 years later, has the urge to kill been reawakened? As murder follows murder, the detective team tasked with solving the crimes struggle with the lack of leads. It’s a race against time and the weather - each time it snows, another person dies.

The last time homicide detective Tracy Crosswhite was in Cedar Grove, it was to see her sister’s killer put behind bars. Now she’s returned for a respite and the chance to put her life back in order for herself, her attorney husband, Dan, and their new daughter. But tragic memories soon prove impossible to escape. Dan is drawn into representing a local merchant whose business is jeopardized by the town’s revitalization. 

One beautiful summer’s evening, thirteen-year-old twins Ivy and Erin Westmore snuggle down in a tent in their back garden, giggling and sharing secrets. When their mother goes to wake the girls the next morning, their tent is empty. The alarm is raised, and Detective Natalie Ward is put onto the case. When the twins’ bodies are discovered on nearby marshland, covered with deep pink petals, an icy shiver travels down Natalie’s spine. Everything about the girls’ deaths reminds her of a horrifying case she worked on earlier in her career.

Fifteen-year-old Lindy Rosen has been having nightmares for weeks, waking in a panic, screaming that there’s a man in her room watching her sleep. Her parents assumed it was her overactive imagination, but when one morning they find Lindy missing from her bedroom, they’re not so sure. Detective Jenna Alton is called in to investigate. Within hours of the schoolgirl going missing, the kidnapper reaches out to Jenna with a video of Lindy bound and tied to a chair, crying to be set free. And a simple message - you’ve got 24 hours to find her or I kill her. 

When the body of a teenage runaway is found hidden inside someone else’s grave in a small-town cemetery in the Lake District, an urgent call is made to forensic pathologist Beth Adams. Still traumatised by a recent attempt on her own life, one look at the beautiful girl’s broken body is enough to bring Beth out of hiding for the first time since her attack. She’s the only one who can help her trusted friend, Detective Josh Walker, crack the most shocking case of his career.  

Twenty years ago Emily Mills’s father was murdered, and she found his body hanging in the backyard. Her younger sister, Madison, claims she was asleep in her room. Her older sister, Tara, claims she was out with friends. The tragedy drove their mother to suicide and Tara to leave town forever. The killer was caught. The case closed. Ever since, Emily and Madison have tried to forget what happened that night - until an eerily similar murder brings it all back. It also brings FBI special agent Zander Wells to the Oregon logging town.

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.

Susan Wheeler is a devoted mother. She would do anything for her three children. She drops them off and picks them up every single day. Until one day when Susan kisses them goodbye and then never comes to pick them up. Susan’s mother, Mary, is worried. Susan’s sister, Clare, is furious. As the hours turn into days, even Clare becomes fearful for Susan. And, when Mary discovers Susan’s diary, she begins to uncover a dark secret from her childhood. Something no one in the family knew.

Detective Josie Quinn is horrified when she’s called to the house of a mother who had her newborn baby snatched from her arms. A woman caught fleeing the scene is Josie’s only lead, but when questioned it seems this mysterious girl doesn’t know who she is, where she’s from, or why she is so terrified.... Is she a witness, a suspect, or the next victim? As Josie digs deeper, a letter about a mix-up at a fertility clinic links the nameless girl and the missing child to a spate of killings across the county.

An eight-year-old girl, Chelsea Compton, is missing in Pine Valley, California, and for Detective Katie Scott it’s a cruel reminder of the friend who disappeared from summer camp 20 years ago. Unable to shake the memories, Katie vows she won’t rest until she discovers what happened to Chelsea. But as Katie starts to investigate, the case reveals itself to be much bigger and more shocking than she feared. Hidden deep in the forest she unearths a makeshift cemetery: a row of graves, each with a brightly colored teddy bear.