Martha used to be a force of nature: Calm, collected, and in charge. But since moving her husband and two daughters to Dublin under sudden and mysterious circumstances, she can't find her footing. Robin was the "it" girl in school, destined for success. Now she's back at her parents' with her four-year-old son, vowing that her ne'er-do-well ex is out of the picture for good. Edie has everything she could want, apart from a baby and the acceptance of her new neighbors. She longs to be one of the girls and to figure out why her perfect husband seems to be avoiding their perfect future.

Two days ago, the Wilson family checked into the imposing, glass-fronted Lodge, surrounded by snow and perched perilously on the edge of a cliff looking out to a gray sea. Not everyone was looking forward to the family get-together. But mother-in-law Angela insisted the winter trip would help heal their rifts....

When Megan discovers photographs of her estranged identical twin sister on her husband's phone, she wants answers. Leah already has everything Megan ever wanted. Fame, fortune, freedom to do what she wants. And when Megan confronts Leah, an argument turns to murder. The only way Megan can get away with killing her twin is to become her. But then lockdown hits. How can she continue living two lives? And what happens if someone else knows her secret?

Perfect wife. Doting mom. Jennifer Griffin was loved by everyone, including the women in her suburban-neighborhood book club. Their meetings sometimes went late, but Jenn always came home. Until that night. When Greg Griffin wakes to find his wife is not in bed, his blood runs cold. Her book club friends say Jenn left for home hours ago. But she’s missing. Greg tells detectives their marriage is good, but his alibi is razor-thin. With their young son away at a sleepover, Greg had all night to commit a crime. And there are scrapes on his hands…

As I sit in her dimly lit bedroom, surrounded by flickering candles, I feel the crushing weight of my daughter’s absence. It's been two years since Layla was murdered. The police have searched tirelessly for her killer, but they've found nothing – it's like whoever did it vanished into thin air. My once-perfect marriage is falling apart, we can hardly look at each other anymore. Our ten-year-old son Gale is struggling. He’s changed since she died. He’s more secretive and also…

After the sudden death of her husband, Kate Turner is looking for a fresh start for herself and her teenage daughter, Alex. They relocate to the beachside town of Shoreham, Florida, where all is not as sunny as it seems. Although Kate makes fast friends with a trio of fellow moms, their daughters take an instant dislike to Alex, who attempts to document their bullying in her video diary. Kate brushes off Alex’s concerns—until she receives a series of chilling warnings about the clique of moms from other parents and neighbors.

Doctor Rowan Dupont knows death. She grew up surrounded by it in her family’s Victorian funeral home, and it’s haunted her since the day her twin sister drowned years ago. Between her mother’s subsequent suicide and the recent murder of her father, coming home to run the funeral home feels fitting - even if it leaves her vulnerable to an obsessive serial killer.

Before she became a glamorous fashion designer, Ellie de Florent-Stinson was a trailer-park teen about to turn 16. But a night of birthday celebration doesn’t go exactly as planned and descends into a night she’ll never be able to forget. Now, on the cusp of her 40th birthday, it appears Ellie has everything she ever wanted. Except everything is not quite as perfect as it looks on the outside - Ellie is keeping many secrets. But hiding those skeletons has a cost, and it all comes to a head the night of her fabulous birthday party in the desert.

Popular podcaster and ex-reporter Faith Byrne has made a name for herself telling stories of greatness after tragedy—but her real life does not mirror the stories she tells. When she's asked to spotlight her childhood best friend's missing person case on her podcast, she uncovers desperate secrets and must face the truth before she can move forward.

Susannah, a young widow and single mother, has remarried well: to Max, a charismatic artist and popular speaker whose career took her and her 15-year-old son out of New York City and to a quiet Vermont university town. Strong-willed and attractive, Susannah expects her life is perfectly in place again. Then one quiet morning, she finds a note on her door: "I Know Who You Are." Max dismisses the note as a prank. But days after a neighborhood couple comes to dinner, the husband mysteriously dies in a tragic accident while on a run with Max. Soon, a second note appears on their door....

Winter's chill has descended on Stockholm as police arrive at the scene of a shocking murder. An unidentified woman lies beheaded in a posh suburban home - a brutal crime made all the more disturbing by its uncanny resemblance to an unsolved killing 10 years earlier. But this time there's a suspect: the charismatic and controversial chain-store CEO Jesper Orre, who owns the home but is nowhere to be found.

Alex Armstrong has changed everything about herself—her name, her appearance, her backstory. She’s no longer the terrified teenager a rapt audience saw on television, emerging in handcuffs from the quiet suburban home the night her family was massacred. That girl, Alexandra Quinlan, nicknamed Empty Eyes, was accused of the killings, fought to clear her name, and later took the stand during her highly publicized defamation lawsuit that captured the attention of the nation. It’s been ten years since, and Alex hasn’t stopped searching for answers about the night her family was killed.

Megan thinks that she has the perfect husband and the perfect life. Craig works so that she doesn't have to, leaving her free to relax all day in their beautiful and secluded country home. But when she starts to long for friends and purpose again, Megan applies for a job in London, much to her husband's disappointment. After Megan goes against his wishes and attends the interview, Craig decides that it is time to act. Locking her away in their home, Megan realizes that her husband never had her best interests at heart, nor did they meet by accident. Craig has been planning this.

At loose ends after the devastating death of her mother, Una Richardson responds to an advertisement for a ladies’ companion, a position that leads her into the wealthy, secluded world of Mrs. Elspeth McKenzie. But Elspeth's home isn’t the comforting haven it seems. Kathryn, her cold and bitter daughter, resents Una's presence. More disturbing is evidence suggesting two girls lived here before her.

Grace and Dan Arden are in their forties and have been on the IVF treadmill since the day they got married. Six attempts have yielded no results, and with each failure a little piece of their hope dies. Priya Laghari and her husband Nick Archer are being treated at the same fertility clinic, and while they don't face the same time pressure as the Ardens, the younger couple have their own problems. On the same day that Priya is booked for her next IVF cycle, Grace goes in for her final, last-chance embryo transfer. Two weeks later, both women get their results.