Alexandra Van Ness has the perfect life. She lives in an idyllic resort town tucked away in the Rocky Mountains, shares a designer loft with her handsome boyfriend, Chase, and has her dream job working in child protection. Every day, Alex goes above and beyond to save children at risk. But when her long-lost sister, Ruth, unexpectedly shows up at her door, Alex's perfect life is upended. Growing up, Ruth was always the troublemaker, pulling Alex into her messes, and this time will be no different. Still, Alex will help Ruth under one condition: we will never, ever, talk about the past.

Sixteen years ago, Sylvie’s sister, Persephone, never came home. Out too late with the boyfriend she was forbidden to see, Persephone was missing for three days before her body was found - and years later, her murder remains unsolved. In the present day, Sylvie returns home to care for her estranged mother, Annie, as she undergoes treatment for cancer. Prone to unexplained “Dark Days” even before Persephone’s death, Annie’s once-close bond with Sylvie dissolved in the weeks after their loss, making for an uncomfortable reunion all these years later. 

Charlotte was supposed to be looking after the children, and she swears she was. She only took her eyes off of them for one second. But when her three kids are all safe and sound at the school fair, and Alice, her best friend Harriet’s daughter, is nowhere to be found, Charlotte panics. Frantically searching everywhere, Charlotte knows she must find the courage to tell Harriet that her beloved only child is missing. And admit that she has only herself to blame. 

Cambridge, 1939. The opening weeks of the Second World War, and the first blackout - The Great Darkness - covers southern England, enveloping the city. Detective Inspector Eden Brooke, a wounded hero of the Great War, takes his nightly dip in the cool waters of the Cam. Daylight reveals a corpse on the riverside, the body torn apart by some unspeakable force. 

Sarah Morgan is a successful and powerful defense attorney in Washington D.C. At 33 years old, she is a named partner at her firm and life is going exactly how she planned. The same cannot be said for her husband, Adam. He is a struggling writer who has had little success in his career. He begins to tire of his and Sarah’s relationship as she is constantly working. Out in the secluded woods, at Adam and Sarah’s second home, Adam engages in a passionate affair with Kelly Summers. Then, one morning everything changes. Adam is arrested for Kelly’s murder.

In the autumn of 1960, Angie Glass is living an idyllic life in her Wisconsin hometown. At 21, she's married to charming, handsome Paul, and has just given birth to a baby boy. But one phone call changes her life forever. When Paul's niece, Ruby, reports that her father, Henry, has committed suicide, and that her mother, Silja, is missing, Angie and Paul drop everything and fly to the small upstate town of Stonekill, New York to be by Ruby's side.

Arden Maynor was just a child when she was swept away while sleepwalking during a terrifying rainstorm and went missing for days. Now a young woman living hundreds of miles away, Arden goes by Olivia. She’s managed to stay off the radar for the last few years. But with the 20th anniversary of her rescue approaching, the media will inevitably renew its interest in Arden. Soon, Olivia feels like she’s being watched and begins sleepwalking again. Until late one night, she jolts awake in her yard. At her feet is the corpse of a man she knows - from her previous life, as Arden Maynor.

Beloved baseball coach and teacher Nate Winters and his wife, Alicia, are well respected throughout town. That is until one of the many reporters investigating a bizarre bird phenomenon catches Nate embracing a wayward student, Lucia Hamm, in front of a sleazy motel. Lucia soon buoys the scandal by claiming that she and Nate are engaged in an affair, throwing the town into an uproar...and leaving Alicia to wonder if her husband has a second life.

My husband is missing. And his wife is on my doorstep. The wife I never knew he had. Does that mean my husband’s out looking for wife number three? The more I dig...the more I find. Ledger Stone is not the man I thought I knew. What I'd thought was a whirlwind romance has turned out to be a hurricane laced with lies. It started with one. Will it end with another? 

In 1850s London, the Great Exhibition is being erected in Hyde Park, and among the crowd watching the dazzling spectacle, two people meet by happenstance. For Iris, an arrestingly attractive aspiring artist, it is a brief and forgettable moment, but for Silas, a curiosity collector enchanted by all things strange and beautiful, the meeting marks a new beginning. When Iris is asked to model for Pre-Raphaelite artist Louis Frost, she agrees on the condition that he will also teach her to paint. She has no idea that evil is waiting in the shadows.

When Molly, home alone with her two young children, hears footsteps in the living room, she tries to convince herself it’s the sleep deprivation. She’s been hearing things these days. Startling at loud noises. Imagining the worst-case scenario. It’s what mothers do, she knows. But then the footsteps come again, and she catches a glimpse of movement. Suddenly Molly finds herself face-to-face with an intruder who knows far too much about her and her family. As she attempts to protect those she loves most, Molly must also acknowledge her own frailty.

Rosie and Laura are as different as two sisters can be. One is stable and has the perfect family. The other struggles to break free from her troubled past. When Laura disappears after going on a blind date, Rosie takes matters into her own hands. But as Rosie begins to search for her sister, her greatest fears come to the surface. Could Laura be more of a danger than the stranger she meets, or is the night before her last night alive?

When Josh’s longtime partner, Grace, dies in a tragic accident, he is left with a mess of grief - and full custody of her seven-year-old son, Logan. Wanting to do right by Logan, Josh begins the process of becoming his legal guardian - something that seems suddenly urgent, though Grace always brushed it off as an unnecessary formality. But now, as Josh struggles to find the paperwork associated with Logan’s birth, he begins to wonder whether there were more troubling reasons for Grace’s reluctance to make their family official.

Six years ago, Evie Cormac was found hiding in a secret room in the aftermath of a brutal murder. But nobody has ever discovered her real name or where she came from, because everybody who tries ends up dead. Forensic Psychologist Cyrus Haven believes the truth will set Evie free. Ignoring her warnings, he begins to dig into her past, only to disturb a hornet's nest of corrupt and powerful people who have been waiting to find Evie - the final witness to their crimes. Unbeknownst to him, Cyrus is leading them straight to Evie. The truth will not set her free. It will get them killed.

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.