When a man is found on a British beach, drifting in and out of consciousness, with no identification and unable to speak, interest in him is sparked immediately. From the hospital staff who find themselves inexplicably drawn to him, to international medical experts who are baffled by him, to the national press who call him Mr. Nobody, everyone wants answers. Who is this man? And what happened to him?

It’s the holiday season and Harriet Reed, a novelist on the brink of literary stardom, is newly engaged to Edward Holbeck, the heir of an extremely powerful family. And even though Edward has long tried to sever ties with them, news of the couple’s upcoming marital bliss has the Holbecks inching back into their lives with one invite after another.

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....

Psychiatrist Olivia Cole is a shell of herself after only two years with her tyrannical husband, the outwardly perfect Sebastian. On their two-year anniversary, she’s subjected to one power move too many when Sebastian whisks her away on a surprise trip—first to the charming capital of Sweden, then to an unexpected final destination. Miles from home and help, the only way for Olivia to wrest back control of her life is to give Sebastian an even bigger, shocking surprise.

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.

When Chloe Davis was twelve, six teenage girls went missing in her small Louisiana town. By the end of the summer, her own father had confessed to the crimes and was put away for life, leaving Chloe and the rest of her family to grapple with the truth and try to move forward while dealing with the aftermath.

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.

After years of avoiding each other, Daisy Darker’s entire family is assembling for Nana’s 80th birthday party in Nana’s crumbling gothic house on a tiny tidal island. Finally back together one last time, when the tide comes in, they will be cut off from the rest of the world for eight hours. The family arrives, each of them harboring secrets. Then at the stroke of midnight, as a storm rages, Nana is found dead. And an hour later, the next family member follows…

True crime writer Wylie Lark doesn’t mind being snowed in at the isolated farmhouse where she’s retreated to write her new book. A cozy fire, complete silence. It would be perfect, if not for the fact that decades earlier, at this very house, two people were murdered in cold blood and a girl disappeared without a trace.

When Paris Peralta is arrested in her own bathroom—covered in blood, holding a straight razor, her celebrity husband dead in the bathtub behind her—she knows she'll be charged with murder. But as bad as this looks, it's not what worries her the most. With the unwanted media attention now surrounding her, it's only a matter of time before someone from her long hidden past recognizes her and destroys the new life she's worked so hard to build, along with any chance of a future.

One year ago, Isabelle Drake's life changed forever: her toddler son, Mason, was taken out of his crib in the middle of the night while she and her husband were asleep in the next room. With little evidence and few leads for the police to chase, the case quickly went cold. However, Isabelle cannot rest until Mason is returned to her—literally. Except for the occasional catnap or small blackout where she loses track of time, she hasn’t slept in a year. Isabelle's entire existence now revolves around finding him, but she knows she can’t go on this way forever.

Early one morning on the shore of the Thames, DCI Samuel Owusu is called to the scene of a gruesome discovery. When Owusu sends the evidence for examination, he learns the bones are connected to a cold case that left three people dead on the kitchen floor in a Chelsea mansion thirty years ago. Rachel Rimmer has also received a shock—her husband, Michael, has been found dead in the cellar of his house in France. All signs point to an intruder, and the French police need her to come urgently to answer questions about Michael and his past that she very much doesn’t want to answer.

What could be more restful than a weekend getaway with family and friends? An isolated luxury cabin in the woods, spectacular views, a hot tub and a personal chef. Hannah’s generous brother found the listing online. The reviews are stellar. It'll be three couples on this trip with good food, good company and lots of R & R. But the dreamy weekend is about to turn into a nightmare.

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.

It is midnight on the morning of Halloween, and Jen anxiously waits up for her 18-year-old son, Todd, to return home. But worries about his broken curfew transform into something much more dangerous when Todd finally emerges from the darkness. As Jen watches through the window, she sees her funny, seemingly happy teenage son stab a total stranger.