Thirty-eight-year-old Rebecca Barlow drops her four-year-old son off at her parents' house, promising to return by five. Five comes and goes. Then six. Then seven. Worried, Rebecca's parents try calling. She doesn't answer, and her friends haven't heard from her either. It seems no one has. As concern mounts, Rebecca's father drives to the lake house where she's been staying. Rebecca is nowhere in sight. The following morning brings a grisly discovery when Rebecca's body is found floating in the lake.

For the past two years, former detective Georgiana "Gigi" Germaine has been living off the grid, until today, when she hears some disturbing news that shakes her. Georgiana's brother-in-law has been murdered, her seven-year-old niece kidnapped. As the hours waste away, Georgiana races back to a town she left behind, and a former life she's still not ready to face.

Private Investigator Sloane Monroe is about to face the most challenging case of her life, and this time, it hits a little too close to home. In the dirty hallway of a local tavern, six-year-old Louie Alvarez plays with his race cars, waiting for his mother to take him home. A scream rips through the air. Louie freezes, then turns, staring at the room at the end of the hallway where the sound had come from.

Something unusual is happening to Quinn Montgomery. Trapped inside her unconscious mind, the sound of her father's soothing voice seeps through, and the past 24 hours come flooding back. She wakes to find herself in the hospital. Her childhood best friend Evie is dead. But not just dead, murdered, and Evie's four-year-old son witnessed it all. Traumatized over what he saw, he's not talking. And when Evie's cold-blooded killer goes into hiding, Quinn isn't only out for justice, she's out for revenge.

Fed up with her lazy, unruly neighbor, Mary Pritchard sprints across the street, determined to give Darryl a piece of her mind. She arrives to find he's been shot, the bullet piercing the center of his forehead. He's been executed, and that's not all. A mysterious woman is sprawled out on the floor in Darryl's hallway. She's dead too. Who is the woman? Why is she there? And why have they both been murdered?

Feisty. Ballsy. Bold. And not your average 70-year-old woman. After a late-night tryst with a much younger man, Maisie Fezziwig wakes to a harrowing scream outside. Curious, she removes a pistol from her dresser drawer and walks outside to investigate. The sleepy street is still and calm at first, until Maisie stumbles on a grisly murder that will change her life forever.

You've lost your daughter. She's addicted to drugs and to an abusive boyfriend. And she's made it clear that she doesn't want to be found. Then, by chance, you see her playing guitar in Central Park. But she's not the girl you remember. This woman is living on the edge, frightened, and clearly in trouble. You don't stop to think. You approach her, beg her to come home. She runs.

Marc Seidman awakens to find himself in an ICU, hooked up to an IV, his head swathed in bandages. Twelve days earlier, he had had an enviable life as a successful surgeon, living in a peaceful suburban neighborhood with his beautiful wife and a baby he adored. Now he lies in a hospital bed, shot by an unseen assailant. His wife has been killed, and his 6-month-old daughter, Tara, has vanished. But just when his world seems forever shattered, something arrives to give Marc a new hope: a ransom note.

Emma Frederick bolts upright in bed, pulse racing. It must be a bad dream. Except it’s not. Crrrrrreeeeeeeeaaaaaaakkkkkkk. The sound of the loose step sends her body into overdrive, and she rushes for the secret room behind the wall. The screech of old hinges echoes through the house as he enters her bedroom. He starts whistling. Three blind mice. Three blind mice. She slaps a hand over her mouth, stifling her scream. He’s coming for her, but that can’t be. She killed him last month.

Escaping from a madman should have been the end of her nightmare. Instead it was only the beginning...Lizzy Gardner was just seventeen when she was kidnapped by the psychopath known as Spiderman, a serial killer terrorizing her California hometown. Imprisoned and tormented for months, Lizzy narrowly escaped with her life and Spiderman vanished without a trace. But if she thought he would forget her, she was dead wrong.

On a beautiful fall evening, in the middle of a game of hide-and-seek, five-year-old Bobby Clark is kidnapped by his estranged father, a shiftless man with a history of domestic violence and drug abuse. Bobby's twin brother Ricky watches, terrified, from his hiding place behind the bougainvillea, while mother Tabby, who also struggles with addiction, lies inebriated on the living room floor.

When dependable Evan Madison fails to show up for work, police are dispatched to his home. His 10-year-old son, Brad, is discovered inside, unharmed and seemingly alone. He is stoic, sitting in front of the television playing his favorite video game, Super Mario - and he's covered in blood. Detective Jean Whitely rounds out the investigative team and she suspects there is much more to the case than what meets the eye. The happily married mother of two is unwavering in her determination to uncover the real truth about Brad. Was he abused? Or is he the product of an evil seed born to kill?

There was no shortage of words she could use to describe her father, and almost none of them complimentary. A voicemail from her estranged sister, Melanie, sends Robin’s heart racing and her mind spiraling in a full-blown panic attack. Melanie’s message is dire: Their father, his second wife, and his 12-year-old stepdaughter have been shot - likely in a home invasion - and lie in the hospital in critical condition.

The serial killer who managed to elude them in Maine has resurfaced. Harland Briggs is every sadistic monster Jo has profiled rolled into one. Leaving his hunting grounds in Maine, he's making his way across country, leaving a path of destruction in his wake. After learning that in the past three years an alarming number of teenage girls had been abducted across the country, Jo goes against her husband's wishes and agrees to go after Briggs. Once again, her sanity, as well as her life, is in jeopardy...and the life of her unborn child.

Skye Kellerman was attacked in her own bed. She managed to fend off her knife-wielding assailant, but the trauma changed everything about her life. As a result of that night, she joined two friends in starting an organization to help victims of crime.

But now...Her would-be rapist is getting out of prison. Skye knows that Dr. Oliver Burke hasn't forgotten that her testimony cost him his reputation - and his freedom.

Sacramento detective David Willis, who investigated her case, believes Burke is a clear and present danger - and guilty of at least two unsolved murders. And now Burke is free to terrorize Skye again. Unless David can stop him. Unless Skye can fight back.