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.

It's been 10 years since Nicolette Farrell left her rural hometown after her best friend, Corinne, disappeared from Cooley Ridge without a trace. Back again to tie up loose ends and care for her ailing father, Nic is soon plunged into a shocking drama that reawakens Corinne's case and breaks open old wounds long since stitched. The decade-old investigation focused on Nic; her brother, Daniel; her boyfriend, Tyler; and Corinne's boyfriend, Jackson. Since then only Nic has left Cooley Ridge.

Littleport, Maine, has always felt like two separate towns: an ideal vacation enclave for the wealthy, whose summer homes line the coastline, and a simple harbor community for the year-round residents whose livelihoods rely on service to the visitors. Typically, fierce friendships never develop between a local and a summer girl - but that’s just what happens with visitor Avery Greer and Littleport resident Sadie Loman. Each summer for almost a decade, the girls are inseparable - until Sadie is found dead.

Kelsey has lived most of her life in a shadow of suspicion, raised to see danger everywhere. Her mother hasn't set foot outside their front door in 17 years, since she escaped from her kidnappers with nothing but her attacker's baby growing inside her - Kelsey. Kelsey knows she's supposed to keep a low profile and stay off the grid for their protection, but that plan is shattered when her dramatic car accident and rescue by volunteer firefighter and classmate Ryan Baker sparks media coverage.

On an island off the coast of Ireland, guests gather to celebrate two people joining their lives together as one. The groom: handsome and charming, a rising television star. The bride: smart and ambitious, a magazine publisher. It’s a wedding for a magazine or for a celebrity: the designer dress, the remote location, the luxe party favors, the boutique whiskey. The cell phone service may be spotty and the waves may be rough, but every detail has been expertly planned and will be expertly executed.

January 1992. A baby girl is left alone for a moment. Long enough for a mother to dash into a shop. Long enough for a child to be taken. Thirteen years later, solicitor Robert Knight's stepdaughter wins a place at a prestigious London school for the gifted. The only puzzle is his wife Erin's reaction. Why is she so reluctant to let Ruby go? Doesn't she want what's best for her? As Erin grows more evasive, Robert can't help but feel she has something to hide and when he stumbles on mysterious letters, he discovers she has been lying to him. 

During the languid days of the Christmas break, a group of 30-something friends from Oxford meets to welcome in the New Year together, a tradition they began as students 10 years ago. For this vacation, they’ve chosen an idyllic and isolated estate in the Scottish Highlands - the perfect place to get away and unwind by themselves. They arrive on December 30, just before a historic blizzard seals the lodge off from the outside world. Two days later, on New Year’s Day, one of them is dead.

Hannah has done everything to make sure her life is safe and secure. A long way from her unstable childhood growing up in foster care, she’s content with her sweet, little, messy apartment and her satisfying job as a social worker. She quietly worries that, aged 36, she might never fall in love. But otherwise her life is where she wants it to be. Until, encouraged by her best friend to join a dating app, she meets Alex. He’s irresistibly handsome. He loves the same music as her. The same food as well. 

Until a chance assignment takes GBI investigator Will Trent to the state penitentiary, and to a prisoner who says he recognizes the MO. The attack looks identical to the one he was accused of eight years earlier. The prisoner’s always insisted that he was innocent, and now he’s sure he has proof. The killer is still out there. As Will digs into both crimes, it becomes clear that he must solve the original case in order to reach the truth

Margot Lee's mother is ignoring her calls. Margot can’t understand why, until she makes a surprise trip home to Koreatown, LA, and finds that her mother has suspiciously died. Determined to discover the truth, Margot unravels her single mother’s past as a Korean War orphan and an undocumented immigrant, only to realize how little she truly knew about her mother, Mina.

Sloane, Ardie, Grace, and Rosalita have worked at Truviv, Inc., for years. The sudden death of Truviv’s CEO means their boss, Ames, will likely take over the entire company. Each of the women has a different relationship with Ames, who has always been surrounded by whispers about how he treats women. Those whispers have been ignored, swept under the rug, hidden away by those in charge. But the world has changed, and the women are watching this promotion differently.

A single mother turns up dead at the bottom of the river that runs through town. Earlier in the summer, a vulnerable teenage girl met the same fate. They are not the first women lost to these dark waters, but their deaths disturb the river and its history, dredging up secrets long submerged.

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. 

Janey Markham is thrilled to be moving with her family to Buckingham Crescent, the smartest address in a desirable suburban town. Worried she’ll be excluded by the glossy local mothers, Janey is thrilled when she meets Tanya, the kind of woman she has always looked up to. Tanya takes Janey under her wing and her teenage daughter, Angel, is amazing with Janey’s little boy. As Janey and Tanya grow closer, Janey feels she can finally leave her troubled past behind.  

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.