My life has never been better. I have a beautiful little girl, and I am engaged to be married to the man I’ve had a crush on since I can remember. So when Nick, my handsome fiancé, announces that his sister Carla is finally coming home, it’s truly the icing on the cake. That was twelve years ago, and no one has seen her since. Everyone is ecstatic about Carla’s return. But as I spend more time with her, I can't shake the feeling that something isn't right. Her behavior is a little off, her childhood memories don't align with mine, and she's oddly evasive about her lost years.

Beth and Ian are desperate to have a child. So much so that they decide to sell his family cabin in upstate New York to pay for IVF. When they arrive at the cabin, they meet Ryan, the caretaker. But Ryan is not who he says he is… He’s here because he knows Beth has a dark secret. And now he intends to use it against her. He threatens to tell Ian everything about Beth's past unless she does exactly what he says.

Kate Bennett vanished from a parking lot eleven years ago, leaving behind her husband and young daughter. When she shows up at a Montana gas station, clutching an infant and screaming for help, investigators believe she may have been abducted by a cult. Kate’s return flips her family’s world upside down—her husband is remarried, and her daughter barely remembers her. Kate herself doesn’t look or act like she did before.

Psychiatrist Dr. Gwen Moore is an expert on killers. She’s spent a decade treating California’s most depraved predators and unlocking their motives - predators much like the notorious Bloody Heart serial killer, whose latest teenage victim escaped and then identified local high school teacher Randall Thompson as his captor. The case against Thompson as the Bloody Heart Killer is damning - and closed, as far as Gwen and the media are concerned. If not for one new development.

Blake Porter is riding high, until he's not. Fired abruptly from his job as a VP of marketing and unable to make the mortgage payments on the new brownstone he shares with his fiancée, he's desperate to make ends meet. Enter Whitney. Beautiful, charming, down-to-earth, and looking for a room to rent. She's exactly what Blake's looking for. Or is she? Because something isn't quite right. The neighbors start treating Blake differently. The smell of decay permeates his home, no matter how hard he scrubs. Strange noises jar him awake in the middle of the night.

Perla Wultz lives with her husband, Grant, and their precious daughter, Sophie, in a gated Pasadena community. Affluent, sociable, and accomplished, Perla plays the part of loving wife and mother to perfection. It seems an ideal life, if not for a decades-old crime that has become Perla’s dark and consuming secret obsession. Twenty-three years ago, Leewood Folcrum confessed to murdering two young girls during a birthday party. Though he’s been condemned to a life sentence, his crime is not forgotten.

Meet Noah - an A-honor-roll student, award-winning swimmer, and small-town star destined for greatness. There weren't any signs that something was wrong until the day he confesses to molesting little girls during swim-team practice. He's sentenced to 18 months in a juvenile sexual-rehabilitation center. His mother, Adrianne, refuses to turn her back on him despite his horrific crimes, but her husband won't allow Noah back into their home.

Alex Volkov is a devil blessed with the face of an angel and cursed with a past he can't escape. Driven by a tragedy that has haunted him for most of his life, his ruthless pursuits for success and vengeance leave little room for matters of the heart. But when he's forced to look after his best friend's sister, he starts to feel something in his chest. Ava Chen is a free spirit trapped by nightmares of a childhood she can't remember. But despite her past, she's never stopped seeing the beauty in the world . . . including the heart beneath the icy exterior of a man she shouldn't want.

Rookie cop Tana Larsson doesn't mind the dark and quiet. Five months pregnant and hoping to escape the mistakes of her past, she takes a post in Twin Rivers, population 320. Maybe here she can find peace and community for her child. But with her superior out of commission, Tana becomes the sole police officer in 17,500 square miles.

Real-estate mogul Martin Cresswell-Smith is the best thing that has ever happened to Ellie. After her daughter’s devastating death, a divorce, and an emotional breakdown, he’s helped her move as far as possible from the grief, the rage, and the monsters of her past. Ellie imagines her new home with Martin in an Australian coastal town will be like living a fairy tale. But behind closed doors is another story - one that ends in Martin’s brutal murder. And Ellie seems almost relieved... Naturally, everyone thinks Mrs. Cresswell-Smith is guilty.

Ryland Grace is the sole survivor on a desperate, last-chance mission - and if he fails, humanity and the Earth itself will perish. Except that right now, he doesn't know that. He can't even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions of miles from home, with nothing but two corpses for company.

While eleven-year-old Nora Davis was up in her bedroom doing homework, she had no idea her father was killing women in the basement. Until the day the police arrived at their front door. Decades later, Nora's father is spending his life behind bars, and Nora is a successful surgeon with a quiet, solitary existence. Nobody knows her father was a notorious serial killer. And she intends to keep it that way. `Then Nora discovers one of her young female patients has been murdered. In the same unique and horrific manner that her father used to kill his victims.

Best friends Lindsey, Kendra, and Dani endure every parent’s nightmare when a tragic accident befalls their teenage boys, leaving one dead, another in a coma, and a third too traumatized to speak. Reeling from the worst night of their lives, the three mothers plunge into a desperate investigation of the bizarre incident. How could something so horrible happen in their wealthy Southern California suburb? They soon discover that the accident was just the beginning, and troubling discoveries lead to chilling questions: Do they really know their children? Do they even know each other?

Abby wants a baby more than anything. But after years of failed infertility treatments and adoptions that have fallen through, it seems like motherhood is not in her future. That is, until her personal assistant Monica makes a generous offer that will make all of Abby's dreams come true. But it turns out Monica isn't who she says she is. The woman now carrying Abby's child has an unspeakable secret. And she will stop at nothing to get what she wants.

Christopher and Hannah are a happily married surgeon and nurse with picture-perfect lives. All that’s missing is a child. When Janie, an abandoned six-year-old, turns up at their hospital, Christopher forms an instant connection with her, and he convinces Hannah they should take her home as their own.