Joe never wanted to come back to Arnhill. After the way things ended with his old gang - the betrayal, the suicide - and what happened when his sister went missing, the last thing he wanted to do was return to his hometown. But Joe doesn’t have a choice, not after a chilling email surfaces in his inbox: I know what happened to your sister. It’s happening again....

Three years ago, passionate surfer Kenna Ward lost her two great loves—after her boyfriend drowned, she hung up her surfboard and swore off the water for good. But she is drawn back to the beach when her best friend, Mikki, announces her sudden engagement to a man Kenna has never met—a member of a tight-knit group of surfers. Kenna travels to a remote Australian beach, entering a dangerous world far from civilization where the waves, weather, and tides are all that matter. Kenna is tempted back into the surf, and drawn into the dazzling group and the beach they call their own.

Three years after they narrowly escaped the IRA’s worst punishment for informing, Northern Irish sisters Tessa and Marian Daly have built a new life in Dublin with their young children. Though Tessa is haunted by the abrupt and violent end to her old life, she does her best to immerse herself in the joys of Finn’s childhood and the rhythms of her new job at The Irish Observer. It’s a small island, though, and just as quickly as they disappeared, figures from the sisters’ past surface to drag them back into the conflict.

Abbie awakens in a daze with no memory of who she is or how she landed in this unsettling condition. The man by her side claims to be her husband. He’s a titan of the tech world, the founder of one of Silicon Valley’s most innovative start-ups. He tells Abbie that she is the perfect wife. He says she had a terrible accident five years ago and that, through a huge technological breakthrough, she has been brought back from the abyss. But as Abbie pieces together memories of her marriage, she begins to question her husband’s motives - and his version of events.

Lex Gracie doesn't want to think about her family. She doesn't want to think about growing up in her parents' House of Horrors. And she doesn't want to think about her identity as Girl A: the girl who escaped, the eldest sister who freed her older brother and four younger siblings. It's been easy enough to avoid her parents - her father never made it out of the House of Horrors he created, and her mother spent the rest of her life behind bars. But when her mother dies in prison and leaves Lex and her siblings the family home, she can't run from her past any longer.

Carrie wants a normal life. Carrie Lawrence doesn’t need a happily ever after. She’ll just settle for “after.” After a decade of helping her sister hide her victims. After a lifetime of lies. She just wants to be safe, boring, and not trekking through the woods at night with a dead body wrapped in a carpet. Becca wants to get away with murder. Becca Lawrence doesn’t believe in happily ever after because she’s already happy. She’s gotten away with murder for a decade and has blackmailed her sister into helping her hide the evidence - what more could a girl want?

One year ago, Lucy’s sister, Nicki, left to meet friends at a pub in Dublin and never came home. The third Irish woman to vanish inexplicably in as many years, the agony of not knowing what happened that night has turned Lucy’s life into a waking nightmare. So, she’s going to take matters into her own hands. Angela works as a paper-pusher in the Missing Persons Unit, but wants nothing more than to be a fully fledged member of An Garda Síochána, the Irish police force. With the investigation into the missing women stalled, she begins pulling on a thread that could break the case wide open.

Julie is missing, and no one believes she will ever return - except Elise. Elise knows Julie better than anyone, and feels it in her bones that her best friend is out there and that one day Julie will come back. She’s right. Two years to the day that Julie went missing, she reappears with no memory of where she’s been or what happened to her. Along with Molly and Mae, their two close friends from college, the women decide to reunite at a remote inn. But the second Elise sees Julie, she knows something is wrong - she’s emaciated, with sallow skin and odd appetites.

New friends Sam, Margaret and Diana are thrilled to be getting out of the city for a girls’ weekend - they’ve bonded over their messy divorces, and every mile on the odometer feels like another step towards putting their exes in the past. But when car trouble halfway into their trip strands them in the most unlikely of mountain towns, they come face-to-face with the hurts and betrayals they were so desperate to leave behind. When Diana doesn't return home after a night out, Sam and Margaret's search for her reveals just how little they know about their friend.

He is her husband. She is his captive. Her husband calls her Jane. That is not her name. She lives in a small farm cottage, surrounded by vast, open fields. Everywhere she looks, there is space. But she is trapped. No one knows she is there. Visitors rarely come to the farm; if they do, she is never seen.

Fifteen years ago, Lilith Wade was arrested for the brutal murder of six women. After a death row conviction, media frenzy, and the release of an unauthorized biography, her 30-year-old daughter Edie Beckett is just trying to survive. She’s a recovering alcoholic with a dead-end city job and an unhealthy codependent relationship with her brother. Edie also has a disturbing secret: a growing obsession with the families of Lilith’s victims. She’s desperate to see how they’ve managed - or failed - to move on. But she’s careful to keep her distance. That is, until she crosses a line and a man is found murdered.

Abigail Baskin never thought she'd fall in love with a millionaire. Then she met Bruce Lamb. He's a good guy, stable, level-headed, kind—a refreshing twist from her previous relationships. But right before the wedding, Abigail has a moment of uncertainty. The drunken one-night stand from her bachelorette weekend, the sexy guy who wouldn't give her his real name, didn't really mean anything, she keeps telling herself. She puts the incident out of her mind. Then the mysterious stranger suddenly appears—and Abigail's future life and happiness are turned upside down.

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.

Detective Angie Pallorino hasn't forgotten the violent rapist who left a distinctive calling card—crosses etched into the flesh of his victim's foreheads. When a comatose Jane Doe is found in a local cemetery, sexually assaulted, mutilated, and nearly drowned, Angie is struck by the eerie similarities to her earlier unsolved rapes. Could he be back?

In 1977, Claire Lake, Oregon, was shaken by the Lady Killer Murders: Two men, seemingly randomly, were murdered with the same gun, with strange notes left behind. Beth Greer was the perfect suspect - a rich, eccentric 23-year-old woman, seen fleeing one of the crimes. But she was acquitted, and she retreated to the isolation of her mansion.