When two bodies are found dumped in a vast lake in Lakemore, Washington, Detective Mackenzie Price is first on the scene. She identifies one of the victims as Katy Becker, a local known for her work helping the community. The other victim looks strikingly similar. Still grappling with a shocking revelation from her past, Mack is only too happy to throw herself into the case. But when she goes to break the news to Katy’s husband, the investigation takes an unexpected turn: Katy is very much alive and has never met the women who resemble her so closely.  

When she was just 12 years old, Mackenzie Price came home to find her father bleeding to death on the kitchen floor. She will never forget that night, nor what her mother asked her to do.... Twenty years later, Detective "Mack" Price is back in Lakemore, despite vowing never to return. Determined to atone for the sins of the past, she is unstoppable in her quest for justice. 

As a snowstorm wreaks havoc in the mountain town of Crooked Creek, a woman is found buried in ice. Detective Ellie Reeves is first on the scene. Examining the body, she finds frozen blonde hair, pink nail polish, and a silver heart necklace engraved with Mine Forever. Ellie has firsthand experience of the monsters that lurk in the mountains - her childhood is testament to that. She vows to catch this one, but she’s up against the brutal weather, with snow covering footprints and making forensics impossible.

An abandoned baby is the last thing Detective Madison Harper expects to find as she drives to her first day back at work since the case that ripped her life apart. But as she cradles the shivering child close, all her instincts tell her there’s something more sinister at play. Then she finds a lone sneaker down a muddy trail nearby, the laces spattered with blood.... 

As day breaks over the fairground, Detective Katie Scott forces herself to take in another disturbing scene in front of her. A woman, the same age as her, found slumped in the carriage of the Ferris wheel, red lipstick dragged across her lips, her throat cut. Katie doesn’t want to believe that the serial killer picking off women across the state has found their way to the small town of Pine Valley, California, but when her team finds a gold engagement ring hanging nearby, it’s a terrifying, but undeniable fact.

When Special Agent Nikki Hunt is called to the Boundary Waters near Stillwater, Minnesota, it’s not just the cold that shocks her to her core: the body of a young woman has been found frozen beside a remote lake. Nikki is devastated to see the victim is her childhood friend Annmarie, and she recognizes the velvet ribbon tied in her hair as the hallmark of a serial killer who she has been hunting for years.

When teenager Nikki Jackson’s body is found at an amusement park, just hours after Fourth-of-July fireworks lit up the night sky, the Lost Creek police rule her death as suicide - a devastating final act from a girl who had lost all hope. But the absence of the knife used to make the wounds on her delicate wrists makes Detective Madison Harper think otherwise. And the partial fingerprint found on the girl’s face proves her right. Someone else was with Nikki in her final moments.

She didn’t notice the corn stalks shiver a few feet to her right. By the time she looked up, the man towered above her. In a single movement he wrapped one thick hand around her waist, the other he clamped over her mouth, muffling her screams. Detective Clara Jefferies has spent years running from her childhood in Alber, Utah. But when she hears that her baby sister Delilah has disappeared, she knows that the peaceful community will be shattered, her family vulnerable, and that that she must face up to her past and go home.

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. 

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 Agent Tori Hunter is urgently called to the murder scene of Dan and Heidi Newman, she finds their throats slit and Dan tied up: forced to watch his wife lose her life. Tori’s first thought is for their 17-year-old daughter, Cara, who is nowhere to be found. Will this popular young girl be the next victim? A broken bracelet is the one clue left at the scene, but the team is running in circles until Tori finally tracks down Cara hiding in the woods. Sobbing, the devastated girl says all she remembers is a flash of a man’s face as she was chased through the forest.

When Detective Clara Jefferies returned home to Alber, Utah, she knew it would take a long time to convince the closed community to trust her. So, she is surprised to be called to private land up in the mountains, until she hears that the bones of a young girl have been found. And hidden in the dark depths of the grave are the remains of a baby, too....

When 17-year-old Savannah Devenish vanishes from her family’s remote vacation cabin in Minnesota, FBI Agent Tori Hunter races along treacherous icy roads to be first on the scene. Savannah’s parents are frantic with worry for their beautiful, carefree girl. Haunted by memories of her own missing sister, Tori vows to do whatever it takes to reunite this family. When the police uncover that Savannah’s father, Jacob, was having an affair, they suspect his involvement, but Tori is convinced his despair is genuine.

When nine-year-old Charlotte Standish goes missing from her street in the small town of Rydale Falls, it sparks a media frenzy. Detective Morgan Brookes leads a frantic hunt for the girl, but little Charlie seems to have vanished into thin air. Chasing up a lead at Charlie’s school, Morgan is chilled to learn that this isn’t the first time a child has gone missing on this street. Another girl disappeared 15 years ago, and Morgan is the only one who thinks the cases could be related. But in the moment that she takes her eye off Charlie’s case, another child goes missing. 

When the bodies of 11 and 12-year-old sisters, Tessa and Megan, are found at the bottom of a ravine - dressed in matching pastel summer outfits, their small bodies broken from the fall - Detective Katie Scott is called to one of the most shocking and heartbreaking crime scenes of her career.