Erin is a documentary filmmaker on the brink of a professional breakthrough, Mark a handsome investment banker with big plans. Passionately in love, they embark on a dream honeymoon to the tropical island of Bora Bora, where they enjoy the sun, the sand, and each other. Then, while scuba diving in the crystal blue sea, they find something in the water....

In 2009, Edie had New York’s social world in her thrall. Mercurial and beguiling, she was the shining star of a group of recent graduates living in a Brooklyn loft and treating New York like their playground. When Edie’s body was found near a suicide note at the end of a long, drunken night, no one could believe it. Grief, shock, and resentment scattered the group and brought the era to an abrupt end.

Half-hidden by forest and overshadowed by threatening peaks, Le Sommet has always been a sinister place. Long plagued by troubling rumors, the former abandoned sanatorium has since been renovated into a five-star minimalist hotel. An imposing, isolated getaway spot high up in the Swiss Alps is the last place Elin Warner wants to be. But Elin's taken time off from her job as a detective, so when her estranged brother, Isaac, and his fiancée, Laure, invite her to celebrate their engagement at the hotel, Elin really has no reason not to accept.

The Home Group is a glamorous collection of celebrity members' clubs dotted across the globe, where the rich and famous can party hard and then crash out in its five-star suites, far from the prying eyes of fans and the media.

Before Owen Michaels disappears, he smuggles a note to his beloved wife of one year: Protect her. Despite her confusion and fear, Hannah Hall knows exactly to whom the note refers—Owen’s sixteen-year-old daughter, Bailey. Bailey, who lost her mother tragically as a child. Bailey, who wants absolutely nothing to do with her new stepmother. As Hannah’s increasingly desperate calls to Owen go unanswered, as the FBI arrests Owen’s boss, as a US marshal and federal agents arrive at her Sausalito home unannounced, Hannah quickly realizes her husband isn’t who he said he was.

Ava only left her daughter in the pushchair for five minutes. The buckle was fastened, and she was sure it was safe. But when she came downstairs, the door was open and Abi was gone - she walked down the road, past the Lovegoods' house, and was never seen again. A year later, the Lovegoods throw a housewarming party, showing off the results of their renovation. Ava doesn’t want to go. She can’t bear to look down that end of the road, to see the place where Abi vanished, and she doesn’t want to spend time with people who don’t share her grief. 

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 will be different. 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.

Littleport, Maine, has always felt like two separate towns: an ideal vacation enclave for the wealthy, whose summer homes line the coastline, and a simple harbor community for the year-round residents whose livelihoods rely on service to the visitors. Typically, fierce friendships never develop between a local and a summer girl - but that’s just what happens with visitor Avery Greer and Littleport resident Sadie Loman. Each summer for almost a decade, the girls are inseparable - until Sadie is found dead.

Maya was a high school senior when her best friend, Aubrey, dropped dead in front of the enigmatic man named Frank whom they’d been spending time with all summer. Seven years later, Maya lives in Boston with a loving boyfriend and is kicking the secret addiction that has allowed her to cope with what happened years ago, the gaps in her memories, and the lost time that she can’t account for. But her past comes rushing back when she comes across a recent YouTube video in which a young woman suddenly keels over and dies in a diner while sitting across from none other than Frank.

L.A. is parched, dry as a bone, and all Oscar, the weather-obsessed patriarch of the Alvarado family, desperately wants is a little rain. He’s harboring a costly secret that distracts him from everything else. His wife, Keila, desperate for a life with a little more intimacy and a little less Weather Channel, feels she has no choice but to end their marriage. Their three daughters - Claudia, a television chef with a hard-hearted attitude.

As CEO of the Herd, an elite women-only coworking space, Eleanor Walsh seems to have it all: close friends, a sweet husband, and the most glamorous and successful female-empowerment-based company in New York City. Then she vanishes on the night of a glitzy press conference—and the police suspect foul play.

Jess needs a fresh start. She’s broke and alone, and she’s just left her job under less than ideal circumstances. Her half-brother Ben didn’t sound thrilled when she asked if she could crash with him for a bit, but he didn’t say no, and surely everything will look better from Paris. Only when she shows up – to find a very nice apartment, could Ben really have afforded this? – he’s not there.

Kelly’s new life in Philadelphia has turned into a nightmare: She’s friendless and jobless, and the lockdown has her trapped in a tiny apartment with the man she gave up everything for, who’s just called off their wedding. The only bright spot is her newly rekindled friendship with her childhood friend Sabrina—now a glamorous bestselling author with a handsome, high-powered husband. When Sabrina and Nathan offer Kelly an escape hatch, volunteering the spare room of their remote Virginia mansion, she jumps at the chance to run away from her old life.

High-powered businesswoman Lana Rubicon has a lot to be proud of: her keen intelligence, impeccable taste, and the L.A. real estate empire she’s built. But when she finds herself trapped 300 miles north of the city, convalescing in a sleepy coastal town with her adult daughter Beth and teenage granddaughter Jack, Lana is stuck counting otters instead of square footage—and hoping that boredom won’t kill her before the cancer does.

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....