The plane is jam-packed. Every seat is taken. So of course the flight is delayed! Flight attendant Allegra Patel likes her job—she’s generally happy with her life, even if she can’t figure out why she hooks up with a man she barely speaks to—but today is her twenty-eighth birthday. She can think of plenty of things she’d rather be doing than placating a bunch of grumpy passengers.

Eden Miller’s world is crumbling. Her husband blindsided her with divorce, and her daughter barely speaks to her. In an impulsive decision to escape her present and revisit the past, she sends a friend request to her college crush, Justin Ward. One night twenty-three years ago changed the course of her life. It closed the door on Justin and opened the door to her husband, Dave. But what if Eden could have a do-over?

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.

It’s the opening night of The Manor, the newest and hottest luxury resort, and no expense, small or large, has been spared. The infinity pool sparkles; the “Manor Mule” cocktail (grapefruit, ginger, vodka, and a dash of CBD oil) is being poured with a heavy hand. Everyone is wearing linen.

When Mel receives an unexpected email from her oldest friend Abi, it brings back memories she thought she had buried forever. Their friendship belonged in the past. To those carefree days at university. But Abi is in trouble and needs Mel’s help, and she wants a place to stay. Just for a few days, while she sorts things out. It’s the least Mel can do. After all, friends look out for each other, don’t they?

Years of trying unsuccessfully to conceive a child have broken more than Angie DeSaria’s heart. Following a painful divorce, she moves back to her small Pacific Northwest hometown and takes over management of her family’s restaurant. In West End, where life rises and falls like the tides, Angie’s fortunes will drastically change yet again when she meets and befriends a troubled young woman.

They whisper about her in Chicago. Men come to her with their hopes, their dreams - their fortunes. But no one sees them leave. No one sees them at all after they come to call on the Widow of La Porte. The good people of Indiana may have their suspicions, but if those fools knew what she'd given up, what was taken from her, how she'd suffered, surely they'd understand. Belle Gunness learned a long time ago that a woman has to make her own way in this world.

Brooke Hastings is ready to end her six-week affair. Gideon Ross is charming and sexy, but he’s not worth throwing away her marriage and family for. So she breaks it off, hoping Gideon will understand. He doesn’t. Gideon insists that he and Brooke are meant to be together. Finally, he backs off, but not before issuing a promise: he’ll never let her go. Six years later, Brooke wants to believe it’s all behind her. Her family has survived intact. Gideon has vanished. But the fear hasn’t disappeared.

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.

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....

In the frigid summers of the Antarctic continent, the sun never sets, and Olivia Campbell has long dreamed of spending a sunlit night in this beautiful, remote place. So when her boyfriend—a high-powered art dealer with a taste for the finer things in life—decides to stage an ostentatious, career-making auction aboard a luxury cruise liner to Antarctica, Olivia can hardly believe her luck. That is, until the ship sets sail and her boyfriend is nowhere to be found, and she is left to manage both the auction and her own creeping fear of the open ocean entirely alone.

After Lucy is found wandering the streets, covered in her best friend Savvy’s blood, everyone thinks she is a murderer. Lucy and Savvy were the golden girls of their small Texas town: pretty, smart, and enviable. Lucy married a dream guy with a big ring and an even bigger new home. Savvy was the social butterfly loved by all, and if you believe the rumors, especially popular with the men in town. It’s been years since that horrible night, a night Lucy can’t remember anything about, and she has since moved to LA and started a new life.

Gifted musician Clemency Thompson is playing for tourists on the streets of Southern France when she receives an urgent text message. Her childhood friend, Lucy, is demanding her immediate return to London. It’s happening, says the message. The baby is back. Libby Jones was only six months old when she became an orphan. Now 25, she’s astounded to learn of an inheritance that will change her life. A gorgeous, dilapidated townhouse in one of London’s poshest neighborhoods has been held in a trust for her all these years. Now, it’s hers.

On the night when Caitlin and Olivia's parents leave them to go to a dinner party both girls are full of excitement about being old enough to stay home alone. What they don't see is the figure watching them through the open window. Who, after the girls have fallen asleep, will turn the handle of the unlocked back door. When their parents return, they will find Olivia's bed empty. Their eldest daughter gone. Never to return. Until now. But is the woman who claims to be Olivia really all she seems? And is everything Caitlin said she saw that night really the whole truth?