Psychologist Faith Corcoran is desperate to escape the stalker who’s made her life a nightmare for the past year—desperate enough to run to the one place that has been her nightmare far longer. Her recent inheritance of her grandmother’s old house in Cincinnati offers sanctuary in which she can start her life anew, but requires that she face the dark memories that still resonate to this day. But she has no idea how close to home her fears still are...

Psychiatrist Tess Ciccotelli has spent her entire career trying to help people, and now, just as her patients are making headway and her practice is thriving, everything is about to come crashing down. Someone is using her patients' deepest, darkest secrets against them, pushing them to commit suicide, and framing Tess in the process.

There is a serial killer on the loose preying on vulnerable women. The only identifiable mark the killer leaves are letters - sometimes one, sometimes two - all carved into the torsos of his victims. Together, they spell “Sydney”. When he grabs Daisy Dawson, he believes he has found his next victim. But despite her small stature, she fights back with an expertise that quickly frees her. Before fleeing the scene, Daisy also manages to grab what proves to be crucial evidence: a necklace from around the killer’s neck.

Forensic genealogist Rowan Healy has made a name for herself by helping investigators trace the family trees of violent criminals who have eluded justice for years. But the pressure of police cases left her burned out, and she’s shifted her focus to helping adoptees find their biological parents.

FBI Supervisory Special Agent Dominic Sheridan is an accomplished expert in the Crisis Negotiation Unit. Practiced, professional, used to dealing with high-stakes situations under tense conditions, Dominic is a master at manipulating people. Everyone, that is, but the headstrong rookie agent bent on destroying her fledgling career. As a child, Ava Kanas put her life on the line when the mob executed her father. Now someone has killed her mentor, the man who inspired her to become an FBI agent - and she’s the only one who recognizes it was anything but a tragic accident.

Austin homicide detective Jordan Poe is hunting a serial killer she fears is the same man who assaulted her sister, Avery, two years ago. The details line up: the victims are the same age, same type, dead by the same grim MO. Luckily Avery survived. But the terrible memories linger, making Jordan more determined than ever to stop this monster in his tracks.

Former CIA assassin Alex Parker works for The Gateway Project, a clandestine government organization hell-bent on taking out serial killers and pedophiles before they enter the justice system. Alex doesn't enjoy killing, but he's damn good at it. He's good at dodging the law, too--until a beautiful rookie agent has him wondering what it might be like to get caught.

At first, they struggle to escape. Then a torrent of blows rains down upon their bodies until their eyes cloud over in final agony. The killer shows no remorse - just a twisted need to witness each victim's last terrified moments. Public defender Rachel Wainwright is struggling to reopen a decades-old case, convinced that the wrong man is in prison. Homicide detective Deke Morgan doesn't want to agree. But if Rachel's hunch is correct, whoever fatally bludgeoned young, beautiful Annie Dawson 30 years ago could be the source of a new string of brutal slayings.

When a woman is found brutally murdered on Austin’s lakeside hike-and-bike trail, investigative reporter Bailey Rhoads turns up on the scene demanding access and answers. She tries to pry information out of the lead Detective Jacob Merritt, but this case is unlike any he’s ever seen, and nothing adds up. With the pressure building, Jacob knows the last thing he needs is a romantic entanglement, but he can’t convince himself to stay away from Bailey.

At the grisly murder scene of a teen prostitute, Virginia state trooper Riley Tatum's past roars back to haunt her. When she was a teenage runaway, she was kidnapped, drugged, and left unconscious on the streets. She has no memories of what happened, only strange recurring dreams of two men playing cards. Former FBI agent Clay Bowman, Riley's old flame, is Shield Security's newest member. He's plagued by the unsolved case of a serial killer nicknamed the Shark who murdered girls as part of a sadistic poker game.

When a man is shot in the head, Bree Taggert and her new partner, veteran detective Dana Romano, respond to the call. They break the news to the victim’s ex-wife and learn the estranged couple’s five-year-old daughter was supposed to have been with him. What starts as a murder investigation quickly morphs into a desperate search for a missing child. The case stirs memories of Bree’s own traumatizing childhood. To find the little girl, Bree will have to relive her own terrifying past.

FBI Hostage Rescue Team member Shane Livingstone is frustrated when an injury sidelines him during an operation to catch a sadistic killer. A killer who auctions off vicious ways to torture his victims and screens the events for money on the dark web. When a teammate dies during the op, a devastated Shane vows to track down the monster responsible—but to do so he’ll need access to specialized skills he doesn’t possess.

Detective Kara Quinn, on leave from the LAPD, is on an early morning jog in her hometown of Liberty Lake when she comes upon the body of a young nurse. The manner of death shows a pattern of highly controlled rage. Meanwhile in DC, FBI Special Agent Mathias Costa is staffing his newly minted Mobile Response Team. Word reaches Matt that the Liberty Lake murder fits the profile of the compulsive Triple Killer. It will be the first case for the MRT. This time, they have a chance to stop this zealous, if elusive, killer before he strikes again.

Deputy Shelby Lake was abandoned as a baby, saved by a stranger who found her in the freezing cold. Now, years later, a young boy is missing - and Shelby is the one who must rescue a child. The only evidence of what happened to 10-year-old Jeremiah Sloan is a bicycle left behind on a lonely road. After a desperate search fails to locate him, the close bonds of Shelby’s hometown begin to fray under the weight of accusations and suspicion. Everyone around her is keeping secrets.

College student Joe Talbert has the modest goal of completing a writing assignment for an English class. His task is to interview a stranger and write a brief biography of the person. With deadlines looming, Joe heads to a nearby nursing home to find a willing subject. There he meets Carl Iverson, and soon nothing in Joe's life is ever the same. Carl is a dying Vietnam veteran-and a convicted murderer. With only a few months to live, he has been medically paroled to a nursing home after spending thirty years in prison for the crimes of rape and murder.

Psychologist Faith Corcoran is desperate to escape the stalker who’s made her life a nightmare for the past year—desperate enough to run to the one place that has been her nightmare far longer. Her recent inheritance of her grandmother’s old house in Cincinnati offers sanctuary in which she can start her life anew, but requires that she face the dark memories that still resonate to this day. But she has no idea how close to home her fears still are...

Eve Wilson's face was once scarred by a vicious assault. Terrified and ashamed, she escaped to the online realm, where she could choose the face she allowed people to see. Years later, her outer scars faded and inner scars buried, Eve has fought her way back to the real world and is determined to help others do the same. Now a graduate student moonlighting as a bartender, Eve researches the addictive powers of online communities. When her test subjects begin turning up dead as a result of apparent suicides, she doesn't know where to turn.

Baltimore city Homicide Detective JD Fitzpatrick has seen a lot of horrific violence, both as a cop and during his deployment in Afghanistan, but nothing like the trail of tortured bodies that are turning up throughout the city. He’s up against a brutal killer with a very personal vendetta. And now JD is beginning to suspect that his medical examiner may be shielding some crucial evidence linked to the case.

There is a serial killer on the loose preying on vulnerable women. The only identifiable mark the killer leaves are letters - sometimes one, sometimes two - all carved into the torsos of his victims. Together, they spell “Sydney”. When he grabs Daisy Dawson, he believes he has found his next victim. But despite her small stature, she fights back with an expertise that quickly frees her. Before fleeing the scene, Daisy also manages to grab what proves to be crucial evidence: a necklace from around the killer’s neck.

The first victim is found in a snow-covered Philadelphia field. Detective Vito Ciccotelli enlists the aid of archaeologist Sophie Johannsen to determine exactly what lies beneath the frozen ground. Despite years of unearthing things long buried, nothing can prepare Sophie for the matrix of graves dug with chilling precision. The victims buried there haunt her. But the killer isn't done yet. He is cold and calculating, the master of a twisted game. Even with Vito and Sophie hot on his trail, he will not stop.