FBI Agent Ella Dark has studied serial killers from the time she could read, devastated by the murder of her own sister, and has gained an encyclopedic knowledge of murderers. When johns are found murdered in their cars, the echoes of past cases are clear: It appears to be a jilted prostitute turned serial killer. But might everything Ella learned be wrong?

FBI Special Agent and single mom Laura Frost, 35, is haunted by her talent: a psychic ability which she refuses to face and which she keeps secret from her colleagues. Yet as much as Laura wants to be normal, she cannot turn off the flood of images that plague her at every turn. Vivid flashbacks. Nightmares of killers and their victims. And glimpses of what a killer may do next. 

Criminal profiler in training Jessie Hunt is sure she's finally put the darkness of her childhood behind her. She and her husband, Kyle, just moved into a Westport Beach mansion. But soon after their arrival, Jessie begins to notice a series of strange developments. The neighbors - and their au pairs - all seem to be hiding secrets. The mysterious yacht club Kyle is desperate to join is rife with cheating spouses. And the notorious serial killer being held at the psychiatric hospital where Jessie is completing her degree seems to know more about her life than is normal - or safe. 

Paige King, 25, in her PhD residency at a psychiatric hospital for the criminally insane, is summoned urgently by the FBI: Her most notorious patient, a diabolical and elusive serial killer, has escaped. And they need her to help hunt him down. 

When a serial killer case spanning three U.S. states goes cold, Adele returns to San Francisco and to the man she hopes to marry. But after a shocking twist, a new lead surfaces and Adele is dispatched to Paris, to lead an international manhunt. Adele returns to the Europe of her childhood, where familiar Parisian streets, old friends from the DGSI, and her estranged father reignite her dormant obsession with solving her own mother’s murder

Fifty-five-year-old empty nester - and freshly retired FBI agent - Kate Wise finds herself drawn out of her quiet suburban life when her friend’s daughter is murdered in a home invasion - and she is implored to help. As Kate hunts the killer, she soon finds herself at the forefront of a manhunt as more bodies turn up - all suburban moms in perfect marriages - and it becomes apparent there is a serial killer stalking this quiet town.  

FBI Special Agent Zoe Prime suffers from a rare condition that also gives her a unique talent - she views the world through a lens of numbers. The numbers torment her, make her unable to relate to people, and give her a failed romantic life - yet they also allow her to see patterns that no other FBI agent can see. Zoe keeps her condition a secret, ashamed, in fear her colleagues may find out. Yet when a serial killer strikes across the Midwest, strangling women in remote places and seemingly at random, Zoe, for the first time, is stumped.

Women are turning up dead on the rural outskirts of Virginia, killed in grotesque ways, and when the FBI is called in they are stumped. A serial killer is out there, his frequency increasing, and they know there is only one agent good enough to crack this case: Special Agent Riley Paige. Riley is on paid leave, recovering from her encounter with her last serial killer, and, fragile as she is, the FBI is reluctant to tap her brilliant mind. Yet Riley, needing to battle her own demons, comes onboard.

When a body is found stuffed into a barrel at a garbage dump, covered in long red lacerations, Detective Jenna Alton and her new deputy, David Kane, rush to the scene. Nothing ever happens in the small American town of Black Rock Falls, so Jenna believes the victim must be one of two recent missing persons, and she fears for the life of the other. Both were strangers to the town, but there's nothing else to link them. Jenna knows someone must have seen something, but no one's talking.

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.

When 12-year-old Isabella Farner disappears, Agent Tori Hunter races to the scene. Witnesses—including her partner’s son, who was biking home with Isabella—saw a man throw her into the back of his blue van and speed away. Terrified that a child she loves like her own might be next, Tori knows every second counts in the hunt for the missing girl. Isabella’s distraught parents insist no one would want to harm their perfect family. But soon a photo of Isabella looking terrified is discovered, holding a copy of today’s newspaper. 

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. 

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.

When Detective Casey White discovers the body of a beautiful teenage girl in a white nightgown near the shoreline in North Carolina’s Outer Banks, a familiar fear floods through her. Could this be Hannah, her sweet, blue-eyed daughter snatched from home 14 years ago? But it only takes one look to confirm that the girl with dark bruising around her throat is another family’s tragedy. Putting her own grief aside, Casey digs into unsolved missing child cases in the area. The victim is Cheryl Parry, one of two little girls taken during a family beach vacation nine years ago. 

When the body of a woman is found hanging from a tree in her front garden, rookie Detective Morgan Brookes is first on the scene. But Olivia Potter is past saving. And when her husband and daughters cannot be traced, Morgan knows there is more to this tragedy. And then she finds them. Lying huddled together in the dark basement, each of their faces covered with a small cotton cloth, their bodies cold to the touch. But as Morgan kneels beside the family, she realizes that one of the girls is still breathing.