In a windswept British seaside town, single mum Alice Lake finds a man sitting on the beach outside her house. He has no name and no idea how he got there. Against her better judgment, she invites him inside. Meanwhile, in a suburb of London, 21-year-old Lily Monrose has been married for only three weeks. When her husband fails to come home from work one night, she is left alone in a place where she knows no one and with the police telling her that her husband never existed.

Fifteen-year-old Ellie Mack was the perfect daughter. She was beloved by her parents, friends, and teachers. She and her boyfriend made a teenage golden couple. She was days away from an idyllic summer vacation, with her whole life ahead of her. And then she was gone. Now her mother, Laurel Mack, is trying to put her life back together.

Owen Pick’s life is falling apart. In his 30s and living in his aunt’s spare bedroom, he has just been suspended from his job as a teacher after accusations of sexual misconduct - accusations he strongly denies. Searching for professional advice online, he is inadvertently sucked into the dark world of incel forums, where he meets a charismatic and mysterious figure. Across the street from Owen lives the Fours family, headed by mom Cate, a physiotherapist, and dad Roan, a child psychologist. But the Fours family have a bad feeling about their neighbor Owen.

Melville Heights is one of the nicest neighborhoods in Bristol, England. It’s the sort of place where doctors and lawyers and old-money academics live. It’s not the sort of place where people get stabbed in the back 30 times with a kitchen knife in their own homes. Someone must have seen something. Newlywed Joey Mullen, for example, recently returned from four years of working in Ibiza. She and her husband, Alfie, are eager to find a place of their own in her hometown. But Joey finds herself distracted by the man next door, Tom Fitzwilliam.

When she was 9 years old, Melody Browne's house burned down, and it took all of her childhood memories with it. Now she's a single mother of a teenage boy living in Central London. She hasn't seen her parents since she left home at 15, but she doesn't mind. She's better off on her own. She works as a dinner lady at her son's school and has no idea where her humdrum life is heading. But one summer's night, a hypnotist inadvertently unlocks memories of her childhood, and her whole life is turned upside down.

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. 

After her grandmother Arlette's death, Betty is finally ready to begin her life. She had forfeited university, parties, boyfriends, summer jobs in order to care for Arlette. Now she's ready for whatever life throws at her, and, since the will included a beneficiary unknown to her who lives in the city, she heads there to find the mysterious woman. In 1920s London, Arlette is starting her new life in a time of postwar change. Beautiful and charismatic, she's drawn into a hedonistic world, but then tragedy strikes, and she flees back to her childhood home....

Alicia Berenson’s life is seemingly perfect. A famous painter married to an in-demand fashion photographer, she lives in a grand house with big windows overlooking a park in one of London’s most desirable areas. One evening, her husband Gabriel returns home late from a fashion shoot, and Alicia shoots him five times in the face and then never speaks another word. Alicia’s refusal to talk, or give any kind of explanation, turns a domestic tragedy into something far grander, a mystery that captures the public imagination and casts Alicia into notoriety.

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....

Lydia, Dean, and Robyn live very different lives, but each of them, independently, has always felt that something was missing. What they don't know is that a letter is about to arrive that will turn their lives upside down. It's a letter containing a secret - one that will bind them together and show them what love and family and friendship really mean. 

Years after an Easter weekend tragedy devastates a family, they return to the house they grew up in to unearth the many secrets hidden within the nooks and crannies of home. 

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. 

Brothers Tony, Sean, and Ned had the perfect upbringing, but now that they are grown-up, real life is starting to get in the way. Tony’s dealing with divorce and a weight problem, novelist Sean is up against a serious case of writer’s block and a shock announcement from his “perfect” new girlfriend, and their parents have a new lodger, Gervase. Why is Bernie, their mother, so keen to give this unsavory waif a home? And what is the real reason for kid brother Ned’s surprise return from his travels in Australia? 

Harriet Westaway - better known as Hal - makes ends meet as a tarot reader, but she doesn’t believe in the power of her trade. On a day that begins like any other, she receives a mysterious and unexpected letter bequeathing her a substantial inheritance. She realizes quickly that the letter was sent to the wrong person - but she also knows that she can use her cold-reading skills to potentially claim the money. Hal attends the funeral of the deceased and meets the family...but it dawns on her that there is something very, very wrong about this strange situation.

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.