When three nine-year-old boys go missing on a field trip to Lakemore’s annual spring festival, panic tears through the small town. Detective Mackenzie Price and her partner, Nick Blackwood, lead the search, but no trace of the boys is found - until one of them is found murdered, a note stuffed down his throat. 

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. 

When a beautiful young woman is reported missing from her hotel room on the outskirts of Black Rock Falls, Sheriff Jenna Alton and her deputy David Kane are devastated to discover her pale, lifeless body trapped beneath a frozen lake nearby. It’s Jenna who finds the single pearl earring buried in the frosted grass that gives them their first lead. 

A knock on the door late in the evening can only mean trouble for Detective Josie Quinn, but fear chokes her at the news that one of her own team is missing. No one has seen Denton PD’s Press Liaison Amber for days and, as she follows the message scrawled on the frosted windscreen of Amber’s car to a nearby dam, Josie hears a piercing scream that tells her she’s too late. But the body they pull from the freezing water is not Amber....

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....

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.... 

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 construction workers unearth a girl’s skeleton in Stillwater, Minnesota, Special Agent Nikki Hunt is called to the scene by her boyfriend Rory. Nikki knows instantly that the girl was murdered, but she is shocked when Rory immediately recognizes her. The victim was his childhood sweetheart, Becky, and he was the last person to see her before she went missing 24 years ago.

When Detective Kay Sharp first left Mount Chester - population 3,823 - in her rear-view mirror, she promised never to look back. The town only contained bad memories and dark secrets. But when a brutal crime surfaces, she finds herself home once more, and this time, she’s not going anywhere. Kay is called to Blackwater River, where the body of a 17-year-old girl has been found. Surrounded by snowy peaks and a forest alive with the colors of fall, the victim floats in the water, a hand-carved locket around her neck.

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.

Her pulse pounded in her ears as she scanned the house. Her eyes traveled over the porch where three empty chairs lazily rocked in the breeze, surrounded by scattered children’s toys. In the yard, there were mounds of earth. Graves. Only big enough for children.... 

When firefighters discover the body of a teenage girl at an abandoned house, Detective Amanda Steele hurries to the scene. Dumfries, Virginia, is a small town, yet no one seems to have any idea who the dead girl is, until Amanda finds a dragonfly pin with the name Crystal engraved on it. Working tirelessly, Amanda traces the pin to Crystal Foster, a 13-year-old who disappeared three years ago from her wealthy parents’ home. Breaking the news to the distraught parents won’t be easy, but the loss of her own daughter still haunts Amanda, and she knows this will bring them closure.

As Agent Nadine Finch rushes to investigate the murder of newlywed Nikki Darnell in Ocala National Forest, Florida, fear floods her body. She swore she’d never set foot there again, not since the case 15 years ago which tore her life apart. But taking in the triangular cuts scarring Nikki’s perfect pale skin, she knows she must put her own traumatic past aside to find justice for Nikki and her inconsolable husband.

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.

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.