The beautiful young woman is perfectly still, curled up in the trunk of the car, her long dark hair hiding her face. Her cotton blouse has ridden up a little, revealing two small dots an inch apart on her back. Just like the others. Guilt has kept FBI Agent Tori Hunter away from her home in Manchester Bay, Minnesota for 20 years, ever since her twin sister disappeared on the Fourth of July, when the girls should have been together. But when she receives an anonymous newspaper clipping about another missing girl, Genevieve, Tori is dragged back to the past.

In the remote forests of Stillwater, Minnesota, you can scream for days and no one will hear you. So when the bodies of two 15-year-old girls are discovered frozen in the snow, Special Agent Nikki Hunt is sure the killer is local: Someone knew where to hide the girls and thought they would never be found. Though Nikki hasn’t been home in 20 years, she knows she must take over the case.

Dylan First, a brilliant psychologist, is haunted by the horrific discovery of her past. Her mentor and father figure, a brilliant psychiatrist and professor, was secretly a serial killer. He is behind bars, but with everything Dylan thought she knew turned upside down, she feels lost when the FBI suddenly comes knocking. A new killer is using her mentor’s trademark signature. And they need Dylan to dissect his mind and stop him before it’s too late.

That’s what I had to decide. I had it all. At least that’s what people told me. Beauty, brains, and a rich husband. I deserved it too. My fiancé had cheated on me with my best friend. But, I won in the end, or at least I thought I had. Until Christmas of 1999. My ex-fiancé, Danny, showed up at my parents’ house, wanting to talk to my father. Danny’s a police officer, and my father’s a retired officer. A six-year-old girl had disappeared without a trace, resembling a case my father had worked on years earlier.

A frozen street performer turned serial killer eludes the FBI and escapes to Paris—where he kills again, luring tourists into his trap—and FBI Special Agent Juliette Hart is dispatched across the world to hunt him down. Juliette’s brilliant mind and European upbringing make her the perfect agent for this case, but being back in Europe resurrects her dark past, and this killer is more diabolical than anyone imagined.

When her sister is found dead in a Baltimore hotel room, reporter Val Ritter’s world is turned upside down. An empty pill bottle at the scene leads the police to believe the cause of death is suicide. With little more than her own conviction, Val teams up with Terry Martin, a retired detective who has his own personal interest in the case, to prove that something more sinister is possible.

FBI Special Agent Faith Bold, hospitalized and haunted by her encounter with a serial killer, is ready to retire—when Turk, a K9 German shepherd, himself traumatized, comes into her life. When a new serial killer strikes, leaving his victims at the bottom of isolated wells, Faith, this time with Turk at her side, will stop at nothing to hunt him down and save the next victim before it is too late.

Everyone in the small town of Denton is searching for Isabelle Coleman, a missing 17-year-old girl. All they've found so far is her phone and another girl they didn't even know was missing. Mute and completely unresponsive to the world around her, it's clear this mysterious girl has been damaged beyond repair. All Detective Josie Quinn can get from her is a name: Ramona. Currently suspended from the force for misconduct, Josie takes matters into her own hands as the name leads her to evidence linking the two girls.

Detective Inspector Jacob Vance and his assistant, Detective Sergeant Brittany Shepherd, are called upon to prevent a series of murders across London. The Metropolitan Police Commissioner has provoked a psychopath with her inaugural speech. Soon later, the commissioner receives a letter threatening a series of nine killings, culminating in "the big one", unless the police chief retracts her speech with a public apology. To disprove her statements, the killer adds colour and poetry to the murders, all committed in the name of the mysterious Lord Robert.

It was Beth Katz’s serial killer father who made her like she is: a successful FBI agent and an unstoppable vigilante dedicated to hunting down murderers who have evaded capture. Beth will push herself to the limits to deliver justice. Even if it means killing those who deserve to die.

When a bloated body is found floating in international waters, twenty miles out at sea, Lily Dawn is called back to the Caribbean. But this is not a happy homecoming. She hasn’t seen her parents since moving to Miami ten years ago, and now her sister has been declared legally dead.

The FBI is alarmed by the rash of killings on trains throughout the country, and they realize they have to put together a joint task force to tackle it. Through a partnership with the rail police, FBI Special Agent Cailtin Dare is chosen to spearhead the new unit designed to hunt killers using trains across the country.

With a string of unsolved murders up and down the Mississippi River, the FBI assembles a task force, assigning their best Minnesota field agent, Grace Ford, to partner with an agent from their Louisiana office. Despite their culture clash, the two must work together to traverse the country cracking the hardest cases—and stop the next killer before it’s too late.

Psychotherapist Letty Whittaker, a professional secret keeper, has a secret of her own. When one of her clients slips free from an abusive boyfriend, Letty becomes the target of his violent rage. Wayne invades Letty's life, slithering his way past the barriers erected between her personal and professional lives, leaving gifts of dead rats, mutilated dolls, and freaky Shakespearian sonnets. Worst of all, Wayne uncovers Letty's deepest shame, infiltrating her AA group and threatening to expose her to the state licensing board.

MMA champ-turned-FBI Special Agent and BAU specialist Dakota Steele is as tough as they come—and as brilliant, too, able to crack serial killers that no one else can.