Confronted by a restraining order and the threat of a lawsuit, failed journalist Leah Stevens needs to get out of Boston when she runs into an old friend, Emmy Grey, who has just left a troubled relationship. Emmy proposes they move to rural Pennsylvania, where Leah can get a teaching position and both women can start again. But their new start is threatened when a woman with an eerie resemblance to Leah is assaulted by the lake, and Emmy disappears days later.

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. 

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.

On an island off the coast of Ireland, guests gather to celebrate two people joining their lives together as one. The groom: handsome and charming, a rising television star. The bride: smart and ambitious, a magazine publisher. It’s a wedding for a magazine or for a celebrity: the designer dress, the remote location, the luxe party favors, the boutique whiskey. The cell phone service may be spotty and the waves may be rough, but every detail has been expertly planned and will be expertly executed.

Getting snowed in at a beautiful, rustic mountain chalet doesn't sound like the worst problem in the world, especially when there's a breathtaking vista, a cozy fire, and company to keep you warm. But what happens when that company is eight of your coworkers...and you can't trust any of them? An off-site company retreat meant to promote mindfulness and collaboration goes utterly wrong when an avalanche hits, the corporate food chain becomes irrelevant and survival trumps togetherness. 

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.

Selena Murphy is commuting home on the train when she strikes up a conversation with a beautiful stranger in the next seat. The woman introduces herself as Martha and soon confesses that she’s been stuck in an affair with her boss. Selena, in turn, confesses that she suspects her husband is sleeping with the nanny. When the train arrives at Selena’s station, the two women part ways, presumably never to meet again. Then the nanny disappears. 

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. Arriving in the midst of a threatening storm, Elin immediately feels on edge - there's something about the hotel that makes her nervous. And when they wake the following morning to discover Laure is missing, Elin must trust her instincts if they hope to find her. 

Fran finds her standing by the swings. A little girl, Esther, no older than seven years old, by herself in the dead of night, her pretty but old-fashioned yellow dress covered in grass stains and her hair dishevelled. She says she's waiting for Father, and that strikes Fran as particularly odd. After Esther is reunited with her family, Fran can't stop thinking about this pious child whose imaginary friend is God. Fran's instincts tell her something is very wrong. Why does Esther keep running away from home, and how did she get that bruise on her leg? 

Gen is on the verge of a divorce from her cheating husband. When her sister, Meg, has a convention to attend in the Big Apple, she invites Gen along to celebrate her newly found freedom. But the perfect sisters’ getaway quickly goes awry when a tipsy Gen defiantly throws her wedding ring off the hotel room’s balcony. Then, wanting some fresh air, she decides to take a late-evening walk alone and vanishes without a trace.

Meet the half sister, and unravel the ties that blind us. The truth: Sisters Kate and Lauren meet for Sunday lunch every week without fail, especially after the loss of their father. The lie: But a knock at the door is about to change everything. A young woman by the name of Jess holds a note with the results of a DNA test, claiming to be their half sister. The unthinkable: As the fallout starts, it's clear that they are all hiding secrets, and perhaps this family isn't as perfect as it appears. 

When I arrive unannounced at my husband's studio in need of a shoulder to cry on after hearing that my best student, Alex, has died, I see a pair of wineglasses drying by the sink, and my deepest fear is confirmed: my husband is having an affair. Most women would fall to their knees in tears and throw him out of the house - but I just can't bring myself to do it. Instead, I go home and cook a healthy dinner for our children, walk the dog, and unload the dishwasher without complaint. I need this marriage to work to protect a terrible secret of my own....

Hannah has done everything to make sure her life is safe and secure. A long way from her unstable childhood growing up in foster care, she’s content with her sweet, little, messy apartment and her satisfying job as a social worker. She quietly worries that, aged 36, she might never fall in love. But otherwise her life is where she wants it to be. Until, encouraged by her best friend to join a dating app, she meets Alex. He’s irresistibly handsome. He loves the same music as her. The same food as well. 

Janey Markham is thrilled to be moving with her family to Buckingham Crescent, the smartest address in a desirable suburban town. Worried she’ll be excluded by the glossy local mothers, Janey is thrilled when she meets Tanya, the kind of woman she has always looked up to. Tanya takes Janey under her wing and her teenage daughter, Angel, is amazing with Janey’s little boy. As Janey and Tanya grow closer, Janey feels she can finally leave her troubled past behind.  

It's Livia's 40th birthday, and her husband, Adam, is throwing her the party of a lifetime to make up for the wedding they never had. Everyone she loves will be there, except her daughter, Marnie, who's studying abroad. But Livia is secretly glad Marnie won't be there. Livia has recently uncovered a secret about their daughter that, if revealed, will shake the foundation of their family to its core. She needs to tell Adam, but she's waiting until the party is over so they can have this last happy time together.