I’ve fallen in love with a man called Sam. And he’s perfect, just perfect. It’s a whirlwind romance. And when our dream home falls through just before our wedding, we decide to move in with his parents. He says his mother, Evelyn, is the sweetest person. But I’m not so sure. She’s obsessively protective over Sam. She wants to know where he is all the time. She wakes us up in the morning, bustling into our room like he’s a small child, not a grown man. She doesn’t want me to be alone with him.

Annie feels like she's at a good place in her life: happily married, expecting her first child, enjoying a vacation with her extended family at their beautiful coastal home. But then her sister, Sunday, suddenly goes missing. Annie is immediately concerned, but the rest of the family assure her that everything's fine, this is the kind of thing Sunday does, she'll be back… But Annie knows in her heart that something is very wrong, and she won't rest until she sees her sister safe and well. As Annie digs for the truth, she realizes that some of her family are not what they seem.

Ruth loves her life in London—she has a high-powered career and a handsome and successful fiancé. This Christmas, she’s bringing him back to her home town to meet her family and school friends, one of whom, Holly Murphy, has a new baby. But, as the Christmas Eve party is in full swing, the unthinkable happens—Ruth drops the baby, injuring the little boy. Or did she? Ruth becomes convinced she didn’t cause the baby’s injuries, that they were inflicted before the party, that the Murphys are not the lovely family they appear to be.

Married couple Mark and Cecilia seem to have it all—looks, wealth, love. But behind closed doors, things are very different—they live in silent resentment, their marriage broken by the shattering loss of the child they so desperately wanted. Enter Alice: Mark’s idea of the perfect woman. She appears from nowhere and offers Mark the chance of a new life filled with love, passion, and, finally, the joys of parenthood—everything he’s ever dreamed of. But there’s a catch.

Lauren Kaine has everything she ever wanted—a fabulous home, a shiny Lexus, a bright 16-year-old son, and a loving husband with a lucrative internet career. Tonight, she walks hand-in-hand with William beneath the lustrous Seattle sky, celebrating 22 years of marriage. But they’re not alone. A mysterious black Audi comes out of nowhere and chases William onto a bridge. He shouts, “they’re here for the card”, and falls to his death. The tinted windows hide the driver’s face, and it speeds away. Still mourning, Lauren sets out to find her husband’s killer.

Chelsea Jameson married the perfect husband, but he doesn't like to talk about his past. She finds out why when his parents invite them to stay at their off-the-grid cabin in the woods. His mother dominates his life, even though her only son is in his thirties. Her mother-in-law creates conflict and tries to manipulate her husband against Chelsea. When Chelsea discovers more about her husband’s parents, dark family secrets are unearthed, revealing the truth. This is not a regular visit to the in-laws.

Callie was living in a ten-acre home in the stunning Adirondacks with her husband. She missed her son, who was away at college, but she was coping pretty well with her empty nest. Then, the nightmare began. Her husband Abel skidded off the road into an icy lake. His truck hit a tree and plunged into the frigid water below. Now, this once-vital 43-year-old carpenter lies in a coma, surrounded by bleeping machines and the hushed rumble of the ward at Pearl Medical Center in Vermont. The police say it was an accident, but the details remain murky.

Then: Morning light shines into the nursery, casting shadows across the pale pink walls and wooden cot in the middle of the room. She opens the door expecting to hear the soft coo of her daughter, Sofia, stretching herself awake. But the room is silent. The cot is empty. Her little girl has vanished. Now: Twelve years have passed, but Emily will never forget the night her life changed forever, and she’s happy to have her daughter back beside her. A teenager now, Sofia started asking questions about when she was a baby.

Abigail Gibson is gone. The day after Christmas, she walks out of her home in the suburbs, leaving behind a strange note on the kitchen table...and her 10-year-old son, Sam. When her sister Gillian gets the call, she can barely believe it: Abigail has always been a little, well, unreliable, but she hasn’t done anything like this in a decade - not since Sam was born. Now, Gillian and her husband are taking care of Sam while they wait for news of Abigail.

Emily dreams of one day owning a house where her son, Josh, and the little one on the way can grow up, but when her husband, Aidan, insists on leaving his lucrative job as a luxury car salesman, she senses something more is afoot - even while she harbours a secret of her own. What is Aidan hiding, and will it jeopardize their young family’s future?

When Megan wakes up in a hospital bed, her first question is: where's my baby? But her husband, her sister and her doctor say he doesn't exist. Megan's not in a maternity ward, she's in a psychiatric unit. Convinced that they're lying to her, Megan is determined to find out the truth. But how can you prove your baby exists when you can't trust your own memories?

Becoming a stepmother is the best thing that ever happened to me. My favorite part of every day is picking Charlie up from school, watching her little rucksack bounce behind her as she skips over for a hug. I love the feel of those thin freckled arms around my waist. After a few rocky months of panic attacks when her mother deserted her, Charlie is flourishing. But the day Charlie’s mother Bronwyn returns without warning—showering Charlie with gifts and making promises she can’t keep—fear ripples through me. She doesn’t know just how far I will go to protect that little girl.

Opening the door to her new home, Libby can’t believe she can afford such a beautiful place. As her new landlord follows her into the bright, open living room, watching her every more, she feels so lucky she spotted the ad online. Days later, Libby is woken by the sound of her neighbors arguing through the wall. As she listens to their angry words, she swears she hears her name mentioned. Why would they be talking about her? As the weeks pass, Libby can’t help but feel that someone is watching her.

Her name is Beth. She came into my life when I needed her the most. We lead very different lives, but she’s the only person who understands me. She was the only other witness to the terrible accident on the street between our homes - the only person who saw the cracks in my perfect life before I had the chance to cover them up.

Two suburban women. Two dark secrets. The almost perfect murder. Everybody needs good neighbours.... Melissa and Hester have lived next door to each other for years. When Melissa's daughter was younger, Hester was almost like a grandmother to her. But recently they haven't been so close. Hester has plans to change all that. It's obvious to her that despite Melissa's outwardly glamorous and successful life, she needs Hester's help.