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.

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.

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.

At a Texas county fair, children’s book author Elle Portman is enjoying a rare night out with her favorite cowboy: her two-year-old son, Charlie. But just as they’re about to head home, the unthinkable happens: a shooter opens fire into the crowd, causing widespread panic to erupt all around them. Also caught in the melee is corporate consultant Calder Hudson. When he wakes up in the hospital, he's told he's lucky. Others didn't fare we well, which instills in Calder a furious determination to get justice.

Former Army brat Morgan Albright has finally planted roots in a friendly neighborhood near Baltimore. Her friend and roommate Nina helps her make the mortgage payments, as does Morgan's job as a bartender. But after she and Nina host their first dinner party—attended by Luke, the flirtatious IT guy who'd been chatting her up at the bar—her carefully built world is shattered. The back door glass is broken, cash and jewelry are missing, her car is gone, and Nina lies dead on the floor.

Of all the things that could have landed in her yard, it had to be him. For most people, finding a half-naked superbeing in their yard might be a dream come true. Unfortunately for Gracie Castro, it’s the exact opposite. Especially when he’s grouchy, rude, and shows no signs of leaving anytime soon. But when a hero of mankind needs you, you do what you have to. Even if it compromises everything you know. And totally changes your life.

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.

Frankie Elkin is an average middle-aged woman, a recovering alcoholic with more regrets than belongings. But she spends her life doing what no one else will - searching for missing people the world has stopped looking for. When the police have given up, when the public no longer remembers, when the media has never paid attention, Frankie starts looking. A new case brings her to Mattapan, a Boston neighborhood with a rough reputation. She is searching for Angelique Badeau, a Haitian teenager who vanished from her high school months earlier.

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.

After the devastating loss of her husband in Iraq, Morgan Dane returns to Scarlet Falls, seeking the comfort of her hometown. Now, surrounded by family, she’s finally found peace and a promising career opportunity - until her babysitter is killed and her neighbor asks her to defend his son, Nick, who stands accused of the murder.

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.

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.

In the still shadows of the confessional, a madman tauntingly reveals his plan for a murder he is going to commit, pulling Father Thomas Madden into a twisted game by disclosing his next intended victim: Tom's sister, Laurant. In a frantic race to protect her, Tom calls upon his best friend, elite FBI agent Nick Buchanan, to track the predator who is closing in on Laurant. Now, as an electrifying attraction grows between Laurant and Nick, so does the danger - and one false move will cost both of them everything that matters.

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.

Forensic psychologist and single mother Ann Bailey has joined forces with Montana Highway Patrol officer Bryce McCabe. An expert in untangling the motives of depraved minds, Ann is tasked to help solve the mystery of two murdered women doused with gasoline and set aflame. It’s not hard for Ann to be reminded of the charismatic Elijah Weston, who served a decade in prison for arson - a crime that nearly cost Ann her life. Elijah may have been exonerated, but the connection to these rage killings is impossible for Ann to ignore.