Christian Windsor is a certified genius. He's also autistic. At 23 years old, with two PhDs, Christian joins the FBI's most dangerous division, The Exceptional Crimes Unit. His first assignment? A serial killer on a rampage. Nicknamed The Surgeon, he's cutting the eyeballs out of women. That's not the only psychopath lurking in the shadows, though. There's another, and Christian can't see him.

The first victim is attacked in her home. Tied to her bed. Forced to watch every unspeakable act of cruelty - but unable to scream. The second murder is even more twisted. Signed, sealed, and delivered with a message for the police, stuffed in the victim's throat. A fractured nursery rhyme that ends with a warning: "There will be more". For detective Jack Murphy, it's more than a threat. It's a personal invitation to play.

Rookie cop Carrie Santero has always been fascinated by serial killers. As a teenager, she wrote a letter to Charles Manson in prison - and received a chilling reply. Then she came face to face with a child murderer in her small Pennsylvania town, an encounter that haunts her to this day. Now, as a detective in training, she finally has her chance to make a difference; to hunt down a psychopathic sadist who embodies the very nature of evil itself.

When Dr. Sloan Hastings submits her DNA to an online genealogy site for a research assignment, her goal is to better understand the treasure-trove of genetic information contained on ancestry websites. Brilliant and driven, Sloan is embarking on a fellowship in forensic pathology, training under the renowned Dr. Livia Cutty. Sloan has one reservation about involving herself in the experiment: she’s adopted. Grateful for a loving home, she’s never considered tracking down her biological parents.

Vivvy Bouchet, daughter of a known psychic, was ten when she saved a boy’s life by making an impossible prediction. Now she’s an astrophysicist in Texas, devoted to science, but the boy she saved has become a cop who continues to believe she can see things no one else can. When he begs for help on the high-profile cold case of a kidnapped girl, Vivvy steps back into the ocean of voices that once nearly drowned her.

Two little girls stand with their heads bowed in my living room. I’m told they’re my granddaughters. Daisy is nine, and Alice seven. Daisy is the spitting image of her mother. This is the first time I’ve met them since my daughter and I fell out after she married that waste of space, Vince. They’ve come to live with me because their mother — my daughter — was murdered. In her own home while they slept close by. I think Vince killed her. But the police can’t prove it. I’ve always known he was no good. He treated my daughter like dirt. I said he’d cheat on her — but she wouldn’t listen.

Lowen Ashleigh is a struggling writer on the brink of financial ruin when she accepts the job offer of a lifetime. Jeremy Crawford, husband of best-selling author Verity Crawford, has hired Lowen to complete the remaining books in a successful series his injured wife is unable to finish. Lowen arrives at the Crawford home, ready to sort through years of Verity's notes and outlines, hoping to find enough material to get her started. What Lowen doesn't expect to uncover in the chaotic office is an unfinished autobiography Verity never intended for anyone to read.

Who is Audrey Hoedemaker? It's a question her sister Maureen has heard more times than she can count, and she doesn't know what the short answer would be. Little sister, troubled teen, backpacker, musical theatre coach, con artist, childcare worker. Murderer. A tragic, traumatic childhood casts a long shadow on the Hoedemaker sisters. Maureen has worked hard to move beyond the violence of the past and build a good, honest life for herself. Audrey, however, just can't seem to do the same, careening from one state of chaos to another.

After the killing of a prominent mob lawyer, NYPD homicide detectives Jacob Jackson and Caitlin Grimes start receive chilling, written “rules” for how to commit the perfect murder. "Rule number one for the perfect murder: Evidence is your enemy. Leave none behind." Jackson (Reid Scott) and Grimes (Cobie Smulders) race to find the killer, setting them on a collision course with the city’s crime underbelly, and a perpetrator who seems happy to toy with them. “Rule number two. No crimes of passion. The perfect murder is always business, never pleasure.”

Kidnappers grabbed Jenna in broad daylight, right in front of her children and their horrified classmates. Her family was issued an insane ransom demand: $25 million in cash and jewels, payable by the end of the school day, otherwise they’ll never see her again. As Jenna’s mother scrambles to gather the money, detectives Mo Butler and George Ortega follow the trail of the kidnappers, which will lead them through a sordid landscape of jealous lovers, broken dreamers, and twisted schemers. But every second counts, and there’s one thing Jenna Wade doesn’t have: very much time.