When Ella Tate stumbles into Black Rock Falls, her exhausted and bloodied body is a terrifying sight, but not as frightening as the story she has to tell. Ambushed on their way into town when they stopped to help a man by the side of the road, Ella and her friend Sky ran when he pulled a knife on them. But only one of them got away.

The body of Amos Price lies in a pool of blood on the polished floor of an otherwise empty house. With no signs of a break in and no clues left at the scene, Detective Jenna Alton is at a loss. But as the team begins to unpick the life of the reclusive victim, they discover a disturbing link between Amos and the disappearance of several young girls in the county going back years.

Hidden deep in the forest, schoolgirl Felicity Parker is found carefully laid out on a rock with nothing but a freshly picked bunch of flowers next to her lifeless form. Detective Jenna Alton is called in to investigate the gruesome discovery. With the body found just off a popular hiking route, Jenna believes the killer is a visitor to the town...until a second local girl is discovered.

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. 

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.

Following a frantic emergency call in the middle of the night, Detective Jenna Alton arrives at a secluded family home to find the body of Lucas Robinson lying in a pool of his own blood in his bed. His wife Carol, shivering in shock, has just watched an intruder shoot her husband in cold blood. As Jenna investigates the murder, she soon discovers that Lucas was having an affair. And when his mistress is also found strangled to death in the center of the small town, Jenna is convinced that the murderer is living amongst them.

When local cheerleader Laurie Turner goes missing after practice and her bright red pick-up truck is found abandoned by the side of a quiet road, Detective Jenna Alton fears the worst. Visiting Laurie’s family house, Jenna senses that the teenager’s home life isn’t as perfect as her father would have people believe. Quick to temper and full of hatred towards Laurie’s mother, Dr. Turner doesn’t seem to know the first thing about his own daughter, let alone how long she’s been missing for. 

It’s winter in Black Rock Falls, and as tourists flock to the small town to take in the snowy mountain peaks, one visitor makes a sickening discovery. The frozen body of a young woman hangs from a tree on the outskirts of town. Detective Jenna Alton is called in to investigate. Jenna’s stomach turns as she surveys the ice-cold remains, and she’s soon alerted to similar burial sites nearby. With no missing persons reported, Jenna and her deputy, David Kane, fear Black Rock Falls is being used as a dumping ground for bodies. 

When the body of a man is found in the dense forest surrounding Black Rock Falls, Sheriff Jenna Alton immediately sees disturbing similarities with a past case - the same murder weapon, the remote beauty spot, and the way the victim is perched against a tree with no sign of a struggle. But the killer in that case was jailed for life. 

Detective Jenna Alton surveys the charred remains of the large suburban home, stopping to pause at the three lifeless bodies of the Woods family. Jenna knows she’s looking for a serial killer, but her priority is finding the missing teenage daughter last seen on the night of the inferno. Days later, Sophie Woods’s body is discovered floating in a shallow pool of crystal-clear water - known locally as Dead Man’s Drop - but Jenna still doesn’t know who would target the quiet family in such a brutal attack.

Jenna has been working undercover for four years, and now she’s ready to take down the most dangerous man she’s ever met: her husband, Michael. But first, she must survive the most high-stakes night of her career at home. Michael is planning something deadly behind closed doors, and Jenna must find a place to hide, where she can listen to every word. Then, she must run for her life. But as night falls and guests arrive, Jenna sees a distressed young girl being dragged into the house, and she knows she can’t leave an innocent soul behind.

When secretary Annie Parkes is snatched from the street outside of her workplace, David Kane is tasked with finding her. Strong, highly skilled, and secretive, he’s a loner and an outsider; the only man the military trust to find Annie before her kidnappers make good on their promise to kill her. But as Kane pulls Annie from a derelict building, gunshots ringing through the deserted streets around them, he realizes rescuing her is just the beginning. He needs to keep her close to find out who is behind her capture, and to keep her safe.

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. 

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.

Detective Josie Quinn hasn’t heard from her sister since Trinity stormed out of the house in the heat of an argument three weeks ago. So, when human remains are found at the remote hunting cabin where Trinity was last seen, Josie can only assume the worst. Gathering her team, Josie feels a surge of relief when the dental records match a different body - that of a missing single mother from a neighboring town. But now Josie’s is not the only broken family desperate for answers.