One hot summer night, 15-year-old Olivia comes home late from a party she was strictly forbidden from going to, and she and her mother, Hannah, start arguing. Soon Olivia speaks the words that every parent has heard from their teenage child.

Newly divorced Jo is delighted to move into her best friend’s spare room almost rent-free. The high-tech luxury Camden flat is managed by a meticulous home assistant, called Electra, that takes care of the heating, the lights - and sometimes Jo even turns to her for company. Until, late one night, Electra says one sentence that rips Jo’s fragile world in two: ‘I know what you did’. And Jo is horrified. Because in her past she did do something terrible. Something unforgivable.

Thirty years ago, Nicola Watson lived with her parents and older brother in a respectable suburb. Now a successful lawyer in the city, with a life poles apart from her dark beginnings, Nicola has returned home for her mother’s funeral. All Carol wanted was to protect her children, but escaping her husband was only the beginning of the story. And when Nicola learns the truth of what her mother did, it will change everything she thought she knew about herself and her family. A gripping, emotional story of family secrets, and the strength of a mother’s love in the darkest times.

Kate used to be good at recognising people. So good, she worked for the police, identifying criminals in crowds of thousands. But six months ago, a devastating car accident led to a brain injury. Now the woman who never forgot a face can barely recognise herself in the mirror. At least she has Rob. Young, rich, handsome and successful, Rob runs a tech company on the idyllic Cornish coast. Kate met him just after her accident, and he nursed her back to health. Until one day, she looks at Rob anew.

It’s been 192 days, seven hours and fifteen minutes since her last drink. Now Astrid is trying to turn her life around. Having reluctantly moved back in with her mother, in a quiet seaside town away from the temptations and painful memories of her life before, Astrid is focusing on her recovery. She's going to meetings. Confessing her misdeeds. Making amends to those she's wronged.

Kat remembers the days when her only daughter Amy wouldn't leave her side. But now Amy is grown up and gone - to university in a town several hours away. Kat's house - which once felt too full, too noisy, too busy - is deathly quiet, and Kat awaits the daily phone call to tell her that her beloved daughter is thriving and happy. But one day Amy doesn’t call. Kat’s husband and friends think she is being paranoid. But Kat knows right away that something is very wrong.

When single mother Darcy’s son falls from a rope bridge at a local playground, life stands still. She clutches his small, limp body, frozen, until a pair of strong hands push her aside, and she watches as George, a local doctor, saves her son’s life. George, with his twinkling hazel eyes, easy charm and lack of wedding band is almost too good to be true, but coffee becomes lunch, lunch becomes dinner, and soon they can’t go an evening without seeing each other.

Since Alice’s fiancé walked out on her, she never thought she’d meet "The One". But all that changes when she meets Dominic. Handsome, charming, and kind, Alice can’t believe her luck when he proposes a few months later and moves into her West London home. Three years on, Alice’s catering business is thriving and she is married to a man she adores. So when she sees that little blue line, it should be the happiest moment of her life: they’re going to have a baby. But then the police knock on her door and Alice’s whole world is turned upside down...Dominic is dead.

Claire Carmichael leads a charmed life. She has two beautiful sons, Jamie and Joshua, and a handsome and successful husband who loves her. Even when she was in school, Claire had it all. She was clever, likeable, and after passing the initiation tests, she was welcomed into the society of popular girls - the Queen Bees. So when a scandal threatened to ruin Claire's reputation, the Queen Bees closed rank to protect her, no matter who else got hurt. Claire may have moved on from her school days, but for one person who she hurt irreparably, those memories are as fresh as blood.

When Claire sees Hannah Wilson at an exclusive Manhattan hair salon, it's like a knife slicing through barely healed scars. It may have been 10 years since Claire last saw Hannah, but she has thought of her every day, and not in a good way. So Claire does what anyone would do in her position - she stalks her. Hannah is now Mrs. Carter, living the charmed life that should have been Claire's. It's the life Claire used to have before Hannah came along and took it all away from her.

In seven days, Maggie’s son, Max, turns three. But she’s not planning a party or buying presents or updating his baby book. She’s dreading it. Because in her world, third birthdays are the days on which the unthinkable happens...she loses her child. For the last 12 years Maggie has been imprisoned in a basement. Abducted aged 15, she gave birth to two sons before Max, and on their third birthdays her captor came and took them from her. She cannot let it happen again. But she has no idea how to stop it. And the clock is ticking.... 

Suzi did a bad thing. She’s paying for it now, pregnant, scared, and living in an isolated cottage with her jealous husband, Nick. When Nora moves into the only house nearby, Suzi is delighted to have a friend. So much so that she’s almost tempted to tell Nora her terrible secret. But there’s more to Nora than meets the eye. It’s impossible - does she already know what Suzi did?

She’s the shoulder you cry on when the father of your children disappears. She’s the person you turn to when he comes back, begging for forgiveness. She’s by your side when you discover his guilty secrets. She helps rock your babies to sleep when they cry. She’s your friend when you have no one else. She’s the woman upstairs, whose feet you hear treading above as you drift off at night, thankful you aren’t alone.    

When Grace’s fiancé vanishes without a trace the night after proposing, her life is turned upside down. But has Nick walked out on her, or is he in danger? As Grace desperately searches for answers, it soon becomes clear that Nick wasn’t the uncomplicated man she thought she knew. And when she uncovers a hidden tragedy from his childhood, she realises an awful truth: that you can run from your past - but your secrets will always catch up with you....

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.