Mackenzie Casper is a brilliant student. But she is best known for her mother, a best-selling author whose dark, twisted thrillers have a dedicated worldwide fanbase. When her mother dies in an accident, fans across the world are left grieving, and the investigators are asking: Was that really an accident?

Amy has terrible taste in men. She's dated guys who cheated on her, beat her, and threatened to kill her, but none of them come close to Mark. At first, Mark is the ideal boyfriend—kind, smart, attractive, and funny. But as their relationship deepens, the charming facade crumbles showing his true colors. He calls her all the time. He gets angry if she doesn't respond to his messages within minutes. He gets irrationally jealous and possessive. By the time Amy decides to leave Mark, it's already too late. He knows too much about her, and he'll stop at nothing to keep her to himself.

Stephanie and Jessica have nothing and everything in common. The two women don’t know each other but are on the same plane heading to California. Stephanie is on a business trip and Jasmine is fleeing an abusive relationship. After a few days, they text their friends the same exact messages about the same man—the messages becoming stranger and more erratic. And then the two women vanish. The texts go silent, the red flags go up, and the panic sets in. When Stephanie and Jasmine are each declared missing and in danger, it begs the questions: Who is Trent McCarthy?

Riley Bishop is a single mother, working at home as a graphic designer to provide for her two children, Sadie and Oliver. But something is very wrong. Riley starts forgetting things—like appointments, where she put her keys, and where she parked her car. And then she thinks she sees her deceased ex-husband while out shopping. But as Riley begins to question her own sanity, her twelve-year-old Sadie goes missing. Soon Riley finds it harder and harder to know what is truth and what are lies as she is forced to question her own reality while she searches for her daughter.

Haunted by the serial killer she never caught, Detective Kimberley King leaves her job in New York and relocates to the sleepy town of Dead Woman Crossing, Oklahoma. Kimberley hopes to bring her daughter Jessica up close to her family, far from the bad memories the city holds. But her quiet new home is not the peaceful place she dreamed of. Within days of her arrival, Kimberley is called to the scene of a terrible crime: her friend Hannah, a single mother, has been brutally murdered while her one-year-old daughter was sleeping nearby.

Seventeen-year-old Theodora Briggs left home in the dead of night, after a brutal crime shattered her life. Thirteen years later, she’s made a name for herself as Gemma: beautician, wife, and mother. But the trauma still lingers… And then one day, it’s more than just a phantom pain. Gemma is suddenly accosted by stranger after stranger, all of whom seem to know the truth about her. They confront her with her real name and ominous allusions to the tragedy that drove her out of town. When her family begins to have their own strange episodes, Gemma is rattled.

Kerry’s life is in shambles: Her husband has left her, her drinking habit has officially become a problem, and though the deadline for her big book deal—the one that was supposed to change everything—is looming, she can’t write a word. When she sees an ad for a caretaker position at a revitalized roadside motel in the Catskills, she jumps at the chance. It's the perfect getaway to finish her book and start fresh. But as she hunkers down in a blizzard, she spots something through the window: a pale arm peeking out from a heap of snow.

When private investigator Matthew Hill picks up the call from his wife, Sally, his world comes crashing down. Their eight-year-old daughter, Amelie, is missing. One second, she was there, the next, she was gone. It’s the very nightmare they’ve been dreading. Long ago, Matthew left the force after a woman blamed him for her son’s death, promising that he too would one day feel her pain. It’s a threat that’s hung over his family ever since, and now it’s Amelie’s picture on the news.

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.

Dr. Richmond Dougherty is a renowned pediatric surgeon, an infamous tragedy survivor, and a national hero. He’s also very dead—thanks to a fall down the stairs. His neighbors angrily point a finger at the newest Ms. Dougherty, Addison. The sudden marriage to the mysterious young woman only lasted ninety-seven days, and he’d had two suspicious “accidents” during that time. Now Addison is a very rich widow.

Ethan Dove’s family has moved to a new home in a safe community, and it’s exactly the fresh start they need. Not only is his marriage to Emma hanging by a thread, but his son, Dylan, and twelve-year-old daughter, Rose, deserve to have a happy childhood. After Rose is bullied by the boys across the road, Ethan is relieved when the woman who lives next door steps in. Fiona Smith has come into their lives at just the right moment, and when she offers to look after Rose during the school holidays, Ethan and Emma can’t believe their luck.

When Ella Longfield overhears two attractive young men flirting with teenage girls on a train, she thinks nothing of it - until she realises they are fresh out of prison and her maternal instinct is put on high alert. But just as she’s decided to call for help, something stops her. The next day, she wakes up to the news that one of the girls - beautiful, green-eyed Anna Ballard - has disappeared.

Poe Webb, host of a popular true crime podcast, invites people to anonymously confess crimes they’ve committed to her audience. She can’t guarantee the police won’t come after her “guests,” but her show grants simultaneous anonymity and instant fame—a potent combination that’s proven difficult to resist. After an episode recording, Poe usually erases both criminal and crime from her mind. But when a strange and oddly familiar man appears on her show, Poe is forced to take a second look.

Photographer Isla Wilson is thrilled she's landed her dream job, but the clients who hired her are getting stranger by the day. It sounded so perfect—a month's assignment at the lush Scottish Highlands property of architect Alban McGregor, and his wife, Jessica. But in the woods, there's a playhouse with a chilling history. Two years ago, the McGregors' daughter Elodie was abducted and then died in that playhouse. The townspeople insist her abductor had to be a stranger in their town. Alban refuses to knock the playhouse down, even keeping a picture of it on his wall.

Mackenzie Casper is a brilliant student. But she is best known for her mother, a best-selling author whose dark, twisted thrillers have a dedicated worldwide fanbase. When her mother dies in an accident, fans across the world are left grieving, and the investigators are asking: Was that really an accident?