Mark and Melissa Cain are thrilled to have found Jade, a babysitter who is brilliant with their young children. Having seen her own house burn to the ground, Jade needs them as much as they need her. Moving Jade into the family home can only be a good thing, can’t it? As Mark works long hours as a police officer and Melissa struggles with running a business, the family become ever more reliant on their babysitter, who is only too happy to help. And as Melissa begins to slip into depression, it’s Jade who is left picking up the pieces. But Mark soon notices things aren’t quite as they seem. Things at home feel wrong, and as Mark begins to investigate their seemingly perfect sitter, what he discovers shocks him to his core. He’s met Jade before. And now he suspects he might know what she wants.

Karla watches silently as Jason hurriedly packs his belongings into a suitcase. She knows that her stillness is unnerving him as she watches his every move from the doorway of their bedroom. "I’ve fallen in love with someone else", he’d said to her, just moments earlier. The brutality of those words hit Karla hard and she struggled to breathe as she took in each word in turn. You may think you know what Karla will do next. But you’ll be wrong. Because Karla isn't who you think she is. Only she knows what's about to happen. And you will never see it coming.

Rebecca only wanted to help out - to be kind. Richard seemed so alone after his wife, Nicole, died, and Rebecca wanted to make sure he knew he had someone on whom to rely. But now, she’s in Nicole’s immaculate house. Drinking from her favourite crystal wine glass. Keeping shoes in her orderly closet. Comforting her sweet and grieving stepdaughter. It feels like Rebecca is living another woman’s life.

Claire is shocked when she receives a message out of the blue from Sophie, a beautiful young woman who tells Claire that she’s their father’s secret child. Having spent years nursing her sweet little daughter, Ella, through a life-threatening illness whilst dealing with the emotional fall-out of a devastating marriage breakdown, Claire feels tentatively excited to meet Sophie. Perhaps she might finally have someone in the family to lean on....

Me and Will. Will and Me. A perfect match. He said he would always be there for me, but it’s been a year since he drained his coffee, walked out the front door and vanished. Did he leave me? Or did something terrible happen? I’m scared someone finally found out about what happened on the drive home that night...I lie awake at night trawling the internet for rental properties, desperate for an escape. Until I see my husband’s gorgeous face smiling back at me from a photograph on the fireplace in someone else’s home, and something inside of me snaps....

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.

It is Erin’s 40th birthday party. Pink and silver balloons drift through her garden, the platters of food are empty and the recycling is overflowing with empty wine bottles. Erin mingles with groups of family and friends, surrounded by love and laughter. Then a little red envelope lands on the doormat and everything changes. Inside is a birthday card from somebody she never dreamed would get in touch. Its message is a chilling reminder of the dark past that Erin has worked so hard to bury, a past that could put her precious family in terrible danger....

Clare is ready for a break. It's been a tough year and now she wants to put her feet up. Arriving at the Italian villa for their summer holiday, she decides it's high time her husband and his family did some of the work. After all, her husband owes her.... Now her brother-in-law Jamie has brought a wife, someone none of them have met before. Ella is everything Clare isn't. Glamorous. Young. Influential. But she knows a secret about Clare. Something that has the power to break the whole family apart.

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?"

Pippa wants a second chance. Recently divorced and unhappy at work, she uproots her life to move to a beautiful farmhouse in the countryside, determined to make a fresh start. But Pippa soon realizes that troubles are never far behind. One night, when Pippa is at home alone, a stranger arrives at her front door. Pippa invites him in and, in a moment of madness, makes him an offer she believes could change everything.

At first Katherine dismisses her early-20s intern as a millennial ‘snowflake’: soft, entitled, moralistic. Yet as Lily’s youth and beauty increasingly remind Katherine of everything she once had, she starts to develop a dark fascination with her new colleague.But is Lily as perfect as she seems - or does she have a sinister hidden agenda? As Katherine is drawn into an obsessive power struggle with the intern, a disturbing portrait emerges of two women hiding dark secrets - and who are desperate enough to do anything to come out on top....

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.  

Samantha Frayn doesn’t know why Peter Bridges picks her - a nobody with bitten fingernails and a troubled childhood behind her - but she falls quickly. He’s older, charming, likes fine wine and French films, and his beautiful home has real art on its walls. Peter transforms Samantha’s life in an instant. He sees the better version of herself - the one she’s always wanted to be. It’s only normal that there’s a little friction, when she moves in, over domestic matters like where things are kept, or the proper times to eat, sleep, and shower.

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.

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.