Alison is lucky, and she knows it. She has the life she always craved, including a happy home with Jeff and their brilliant, vivacious teenage daughter, Katherine - the absolute centre of Alison's world. Then a knock at the door ends life as they know it. Fifteen years ago someone else took Alison's baby from the hospital. And now Alison is facing the unthinkable. Her daughter belongs to someone else. What would you do if you discovered your beloved child is not yours?

Anna and Zoe are twins. Identical in appearance, utterly different in personality, they share a bond so close that nothing - or no one - can rip them apart. Until Anna meets charismatic Nick. Anna is trusting, romantic and hopeful; she thinks Nick is perfect. Zoe is daring, dangerous and extreme; she thinks Nick is a liar. Zoe has seen Anna betrayed by men before. She'll stop at nothing to discover if Nick is as good as he seems. The problem is, lies may hurt. But honesty can kill.

Fern is glaring thirty in the face and can't ignore the love lies any longer. Life with Adam was amazing once, but she believes a romantic wedding should be the next step and Adam just won't go down on one knee. Then a chance meeting with Scottie Taylor - the UK's sexiest pop star - lights fireworks in Fern that won't stop exploding.

For 15 years, Lexi and Jake have played the same six numbers with their friends, the Pearsons and the Heathcotes. Over dinner parties, fish & chip suppers and summer barbecues, they’ve discussed the important stuff – the kids, marriages, jobs and houses – and they’ve laughed off their disappointment when they failed to win anything more than a tenner. But then, one Saturday night, the unthinkable happens. There’s a rift in the group. Someone doesn’t tell the truth. And soon after, six numbers come up which change everything forever. 

When Mel hears from a long-lost friend in need of help, she doesn’t hesitate to invite her to stay. Mel and Abi were best friends back in the day, sharing the highs and lows of student life until Mel’s unplanned pregnancy made her drop out of her studies. Now, 17 years later, Mel and Abi’s lives couldn’t be more different. Mel is happily married, having raised her son on her own before meeting her husband, Ben. Now they share gorgeous girls and have a chaotic but happy family home, with three children.

Eloise Hamilton is a Londoner born and bred, so it is a momentous day when she reluctantly agrees to uproot to Dartmouth, leaving behind her perfect world so her husband can finally live in his. There are compensations, however. On tap fresh air, a bigger home for her family, her mother-in-law Margaret will welcome her with open arms, and besides, she can rely on best friend Sara to be her lifeline to London. But both Margaret and Sara are facing their own difficulties, and thrust into unexpected turmoil, Eloise finds she is the one holding everything together for her loved ones - by a thread.

Lucy stole her friend Rose's 'happily ever after' because she wanted Rose's husband and Lucy always gets what she wants. Big mistake. Rose was the ideal wife and is the ideal mother; Lucy was the perfect mistress. Rose doesn't have the vocabulary to describe Lucy. A devoted single mum, she fills her life with labeling school uniforms, organic vegetables, and car runs for extracurricular activities.

For 30 years, best friends Stephanie and Philippa have been practically inseparable. There's nothing they would not do for one another. Until a few simple words change everything. 'I need you to say that I was with you.' Steph, eternally solid, considerate and dependable, is begging her best friend to lie to the police as she's desperately trying to conceal two shocking secrets to protect her family.

Bella secretly married her childhood sweetheart, Stevie, over a decade ago; they were at university, two big kids playing at being grownups. When it all unravelled and reality hit, Bella simply got up and left. And the secret remained a secret. Years later, Bella meets Philip and, despite her vow never to marry again, she can't resist him. He is a catch: funny, charming, interesting, and kind. The only hitch is, she's still (technically, anyway) married to Stevie.

All Jen had ever wanted was a big, happy family. And when she married Jason and became part of the Masterson clan that's exactly what she got. For years everything was perfect. But then Jen sees something that she was never meant to see; unearths a secret she was never supposed to discover. If she tells, then her idyllic life might be over. But can she really keep it to herself?  

When it comes to genes life's a lottery. As Abi knows - she's spent her life in the shadow of her beautiful, glamorous older sister Cleo. Headhunted as model when she was 16, Cleo has been all but lost to Abi for the last 20 years. So when Abi is invited to spend the summer in Cleo's large London home with her perfect family, she agrees despite serious misgivings. But maybe Cleo is finally as keen as Abi to regain the closeness they shared in their youth? Abi is in for a shock.

When Laura's marriage falls apart, she needs to find a home for her and her daughter. And quickly. Welcome to the Close, a beautiful street of mansions, where Laura rents a tiny studio above a garage and gorgeous Stella is the indisputable queen bee who soon suspects Laura of having designs on her fiancé. But when Laura unearths the ghastly secret he is hiding, it threatens Stella's perfectly curated world as well as Laura's career. Hatching an elaborate plan to beat him at his own game, these former enemies are now best friends.

Tamsin and her best friend, Michelle, have been inseparable since they were teenagers. Even now they spend all their time together, along with Patrick, Michelle's handsome husband. So when Tamsin hears a rumour that Patrick is having an affair, she is furious and plots a scheme to catch him in the act using her assistant, Bea, as live bait. It should be foolproof. After all, Tamsin can trust Bea with anything...or can she?

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....

What to do if Matthew, your secret lover, finally decides to leave his wife, Sophie, and daughters and move into your flat, just when you're thinking that you might not want him anymore. Plan A: Stop shaving your armpits. And your bikini line. Tell him you have a moustache that you wax every six weeks. Plan B: Accidentally on purpose bump into his wife, Sophie. Give yourself a fake name and identity. Befriend Sophie. Actually begin to really like Sophie. Snog Matthew's son (who's the same age as you by the way - you're not a paedophile). Buy a cat and give it a fake name and identity.