Celebrating her forty-fifth birthday at her local pub, popular podcaster Alix Summer crosses paths with an unassuming woman called Josie Fair. Josie, it turns out, is also celebrating her forty-fifth birthday. They are, in fact, birthday twins. A few days later, Alix and Josie bump into each other again, this time outside Alix’s children’s school. Josie has been listening to Alix’s podcasts and thinks she might be an interesting subject for her series. She is, she tells Alix, on the cusp of great changes in her life.

Stephanie and Patrick are adjusting to life with their colicky twin girls. The babies are a handful, but even as Stephanie struggles with the disorientation of sleep deprivation, there's one thing she's sure of: She has all she ever wanted. Then Erica, a woman from Patrick's past, appears and makes a disturbing accusation. Patrick had always said his first wife's death was an accident, but now Erica claims it was murder. Patrick insists he's innocent, that this is nothing but a blackmail attempt. Still, Erica knows things about Patrick.

Twenty-two-year-old Olivia has been missing for one day…and counting. She was last seen on CCTV, entering a dead-end alley. And not coming back out again. Julia, the detective heading up the search for Olivia, thinks she knows what to expect. A desperate family, a ticking clock, and long hours away from her husband and daughter. But she has no idea just how close to home this case is going to get.

"This is a very difficult letter to write. I hope you will not hate us too much.... My son broke into your home recently while you were out." In a quiet, leafy suburb in upstate New York, a teenager has been sneaking into houses - and into the owners' computers as well - learning their secrets, and maybe sharing some of them, too. Who is he, and what might he have uncovered? After two anonymous letters are received, whispers start to circulate, and suspicion mounts. And when a woman down the street is found murdered, the tension reaches the breaking point.

Brecken Hill in upstate New York is an expensive place to live. You have to be rich to have a house there, and Fred and Sheila Merton certainly are rich. But even all their money can't protect them when a killer comes to call. The Mertons are brutally murdered after a fraught Easter dinner with their three adult kids. Who, of course, are devastated.

Anne and Marco Conti seem to have it all—a loving relationship, a wonderful home, and their beautiful baby, Cora. But one night, when they are at a dinner party next door, a terrible crime is committed. Suspicion immediately lands on the parents. But the truth is a much more complicated story.

It's winter in the Catskills and Mitchell's Inn, nestled deep in the woods, is the perfect setting for a relaxing—maybe even romantic—weekend away. So when the weather takes a turn for the worse, and a blizzard cuts off the electricity—and all contact with the outside world—the guests settle in and try to make the best of it. Soon, though, one of the guests turns up dead—it looks like an accident. But when a second guest dies, they start to panic. Within the snowed-in paradise, something—or someone—is picking off the guests one by one.

Annabel, Esther, Tanya, and Chloe are best friends—or were, as children. Despite drifting apart in adulthood, shared secrets have kept them bonded for better or worse, even as their childhood dreams haven’t quite turned out as they’d hoped. Then one day they receive a wholly unexpected—but not entirely unwelcome—invitation from another old friend. Poppy Greer has invited them all to her extravagant bachelorette party: a first-class plane ticket to three days of white sand, cocktails, and relaxation on a luxe private island in the Bahamas.

The identity comes first: Evie Porter. Once she’s given a name and location by her mysterious boss, Mr. Smith, she learns everything there is to know about the town and the people in it. Then the mark: Ryan Sumner. The last piece of the puzzle is the job. Evie isn’t privy to Mr. Smith’s real identity, but she knows this job isn't like the others. Ryan has gotten under her skin, and she’s starting to envision a different sort of life for herself. But Evie can’t make any mistakes—especially after what happened last time.

Jake Hayes is missing. This much is certain. At first, his wife, Nina, thinks he is blowing off steam at a friend’s house after their heated fight the night before. But then a day goes by. Two days. Five. And Jake is still nowhere to be found. Lily Scott, Nina’s friend and coworker, thinks she may have been the last to see Jake before he went missing. After Lily confesses everything to her husband, Christian, the two decide that nobody can find out what happened leading up to Jake’s disappearance, especially not Nina.

I only try on one of Nina’s pristine white dresses once. Just to see what it’s like. But she soon finds out...and by the time I realize my attic bedroom door only locks from the outside, it’s far too late. But I reassure myself: The Winchesters don’t know who I really am. They don’t know what I’m capable of....

Shelby Tebow is the first to go missing. Not long after, Meredith Dickey and her six-year-old daughter, Delilah, vanish just blocks away from where Shelby was last seen, striking fear into their once-peaceful community. Are these incidents connected? After an elusive search that yields more questions than answers, the case eventually goes cold. Now, 11 years later, Delilah shockingly returns. Everyone wants to know what happened to her, but no one is prepared for what they'll find....

Aidan Thomas is a hard-working family man and a somewhat beloved figure in the small upstate New York town where he lives. He’s the kind of man who always lends a hand and has a good word for everyone. But Aidan has a dark secret he’s been keeping from everyone in town and those closest to him. He’s a kidnapper and serial killer. Aidan has murdered eight women and there’s a ninth he has earmarked for death: Rachel, imprisoned in a backyard shed, fearing for her life.

Newlyweds Tricia and Ethan are searching for the house of their dreams. But when they visit the remote manor that once belonged to Dr. Adrienne Hale, a renowned psychiatrist who vanished without a trace four years earlier, a violent winter storm traps them at the estate… with no chance of escape until the blizzard comes to an end. In search of a book to keep her entertained until the snow abates, Tricia happens upon a secret room. One that contains audio transcripts from every single patient Dr. Hale has ever interviewed.

Marin had the perfect life. Married to her college sweetheart, she owns a chain of upscale hair salons, and Derek runs his own company. They're admired in their community and are a loving family—until their world falls apart the day their son, Sebastian, is taken. A year later, Marin is a shadow of herself. The FBI search has gone cold. The publicity has faded. She and her husband rarely speak. She hires a PI to pick up where the police left off, but instead of finding Sebastian, she learns that Derek is having an affair with a younger woman.