When 12-year-old Sophie Williams went on a Girl Scout summer camp, she never returned home. Three months later, her body is found inside her sleeping bag in the most frequented area of Cocoa Beach, and the town is outraged. The girl isn't just any child. She's the town's most beloved surf idol, and it was believed that she could be the next Kelly Slater. As another child, the son of a well-known senator, is kidnapped, and the parents receive a disturbing video, FBI profiler Eva Rae Thomas plunges into the investigation.

Thirteen years ago, Winter Black came home early from a sleepover to find her parents brutally murdered and her little brother gone — taken by a serial killer called The Preacher. Now a rookie FBI agent assigned to her first murder case, Winter has returned to the small Virginia town where she grew up. But when bones found by a hunter lead to the discovery of a secret burial ground containing the remains of children, the investigation suddenly hits close to home as the past and future collide with each new shocking discovery.

When Detective Billie Ann Wilde receives a desperate call that five-year-old Emma Wilson is missing, she rushes to the family home. But inside the picture-perfect house surrounded by Florida marshlands, she finds no children’s clothes or toys, no photos of the innocent child Emma’s mother Marissa describes. Billie suspects Marissa Wilson is hiding from someone.

Should I believe the woman who ruined my life, or protect the husband who’s already betrayed me? I walk past rows of immaculate white roses into the Kane family’s picture-perfect home, thinking that I’d never guess what’s happened behind closed doors. The woman standing with my colleagues in handcuffs looks so innocent in her blue, silk dress. But they say she’s killed her husband. When I see her face, I recognise her immediately. She’s my own husband Bradley’s mistress… She was found beside the body with blood on her hands.

Janie Klassyn was only 14 years old when she made the blood pact with her friends. She could never imagine she was setting in motion the horrifying crime that would tear her peaceful prairie town apart. Twenty years later in California, school counselor Emma Grant struggles to keep her past buried. But when she finds a note on her car threatening to reveal her secret, it becomes harder to keep up the deception. Even her teenage stepdaughter suspects that Emma is hiding something.