Gemma Ballantine is getting ready for work one morning when her eldest child comes running down the stairs saying the words every mother dreads. The front door is open. And her six-year-old daughter has disappeared. Frantic with fear, Gemma starts a nail-biting search for her little girl. After what feels like forever, her mother-in-law, Diane, finds Katie wandering lost a few streets away. Relieved to have her youngest child back in her arms, breathing in the sweet scent of her hair, Gemma thinks the nightmare is over. But then her perfect family starts to fall apart....

Faye Townsend has planned the perfect summer trip for her family. But returning to the small seaside town her husband grew up in does not go to plan - the rain pours, and the long days become stifling. And then the unthinkable happens.... Her husband, Jake, and her six-year-old son, Dylan, go for an early morning walk along the beautiful, windswept clifftops. They don’t come back.

The white-washed Italian villa is perfect. I thought it might feel odd, living in a stranger’s house for the summer, but as my husband and children swim in the infinity pool, I start to relax. And then, in the back of a wardrobe, I find something that shatters everything.... Sparkling green eyes, square jaw, lopsided smile. A young man with his arm around a beautiful woman. The picture is old and faded, but I’d recognize him anywhere. The man is my husband.

Tia never harmed anyone. So why does someone want to destroy her? Tia is walking home with her children, along the lakeside of their quiet, safe town, when she realizes something is wrong with her five-year-old daughter, Rosie. She seems troubled, not at all her usual happy self. But when Tia finally coaxes Rosie to open up, she wishes she hadn’t. Because her sweet daughter asks a question Tia never thought she’d hear. "Mummy, why did you kill someone?"

Lizzy Beresford is at home alone when she finds a chilling letter in her kitchen. Someone has been into her home - someone who wishes Lizzy harm. In her little country cottage, with her doting boyfriend, not far from the close-knit village, Lizzy can’t imagine who might want to hurt her. But when the threatening letters keep coming, she starts to suspect everyone around her. Desperate, Lizzy reaches out to her sister, Emma. They haven’t spoken in years, not since the argument that tore them apart. But Emma says: ‘I’ve been receiving letters too....’

Two-and-a-half-year-old Holly is playing happily in a pink, plastic playhouse, while her mother Rachel sips coffee and chats with a friend nearby. It should be an ordinary day for all of them. But, in the blink of an eye, it turns into every family’s worst nightmare. Holly is taken by a stranger and never found. Nine years later, Rachel is living a quiet life in Dorset. She’s tried to keep things together since the traumatic day when she lost her eldest daughter.

It was supposed to be the happiest day of her life. Zoe was sitting in her hotel room, in her perfect white dress, looking forward to the moment when she would make kind, handsome Toby her husband. Then, there was a blank. They said she must have fainted, overcome with emotion. But nothing felt quite right afterward. Did something happen in that missing time? 

Seven-year-old Beatrice has gone missing. Her mother Claire’s whole world has been turned upside down in just one moment, and she can’t stop shaking. She’s desperate to find her precious daughter, but nothing about the day she disappeared makes sense.

Kirstie Rawlings is jolted awake by a child crying. Racing upstairs to check on her newborn, she is plunged into every parents’ worst nightmare. She hears an unknown voice in the baby monitor, saying: "Let’s take the child - and go." Is someone trying to steal her little girl? In the bedroom, her daughter is safe asleep in her cot. Is the voice coming from a nearby house? But there aren’t any other children living on her quiet country road....

Our new home was supposed to be a chance to leave our past behind. But was moving here the worst mistake of our lives? All our friends and family were gathered, glasses raised to toast our fresh start. It should have been a night for happiness and celebration. Zac and I had worked so hard for this: our first home together, just minutes from the sea. But the dream quickly turned into a nightmare.

When Mia James is washed up on a beautiful, sun-drenched beach, she has no idea who she is or what happened to her. She doesn’t even recognize her own face–until her boyfriend, Piers, comes forward, providing her with an identity. Piers is handsome and attentive, Mia’s home is huge and stylish, and her friends are eager to help her fill in the blanks. As Mia steps into the perfect life she was living before her accident, she should feel lucky to be alive. But she struggles to adjust, lost for words around people she is meant to know and love, grasping for clues about who she is.

She bursts into my life like a storm, and nothing is the same again. One by one, I watch as my friends fall under her spell. Only I see that her smiles don’t reach her cold, furious eyes. And when I’m accused of things I didn’t do, when my home is vandalized, I know she’s behind it. But she only lets her mask slip when no one is looking, so if I say anything, I’ll look crazy. So when the baby shower comes around, I’m sitting on a velvet sofa in a posh hotel room, surrounded by balloons. But that afternoon, I finally learn the unbelievable truth. There is no baby....

Newly married Natasha has the perfect house, a loving husband, and a beautiful little girl called Emily. She’d have it all if it wasn’t for Jen, her husband’s ex-wife who just won’t leave them alone. Then Natasha returns home one day to find her husband and Emily gone without trace. Desperate to get her daughter back, Natasha will do anything even if it means accepting an offer of help from Jen.

Everyone has secrets, and Rachel Holloway is no exception. She’s worked hard to keep the past where it belongs: dead and buried. And so far, she’s been very successful. But now the small newspaper where she works wants to produce a podcast on a cold case: the disappearance 12 years ago of young Molly Forster. Some secrets should never see the light of day, and, as far as Rachel is concerned, whatever happened to little Molly is one of them. 

Christine and Jessica cross paths working at the advertising agency Christine runs with her husband. These two women are about to uncover the dark secrets of their own traumatic pasts. But they have no idea that they are connected. The shocking truth of what happened at the wedding all those years ago, and what became of Margaret, is going to blow their lives apart in more ways than each of them could ever have imagined....