Celebrating her forty-fifth birthday at her local pub, popular podcaster Alix Summer crosses paths with an unassuming woman called Josie Fair. Josie, it turns out, is also celebrating her forty-fifth birthday. They are, in fact, birthday twins. A few days later, Alix and Josie bump into each other again, this time outside Alix’s children’s school. Josie has been listening to Alix’s podcasts and thinks she might be an interesting subject for her series. She is, she tells Alix, on the cusp of great changes in her life.

Growing up, Joanne suffered at the hands of a violent boyfriend and controlling relatives, as her mother lapsed into a downward spiral following the break-up of her marriage. But the consequences of her mother's lifestyle turned out to be worse than Joanne could ever have imagined. She already knew about the baby buried in a shallow makeshift grave next to the family plot. But when Joanne came across a red plastic bin in her mother's wardrobe in 2009, she realised that the family home held an even more sinister secret.

When she was 9 years old, Melody Browne's house burned down, and it took all of her childhood memories with it. Now she's a single mother of a teenage boy living in Central London. She hasn't seen her parents since she left home at 15, but she doesn't mind. She's better off on her own. She works as a dinner lady at her son's school and has no idea where her humdrum life is heading. But one summer's night, a hypnotist inadvertently unlocks memories of her childhood, and her whole life is turned upside down.

What if the perfect life you envy was rotten to the core? Three brand-new friends. Three very different families. Way too many secrets. Gisela, Sally and Kate become close when they move into the same new housing estate. But behind their shiny front doors, each has something to hide. Three lives collide in this gripping story about friendship, motherhood and marriage and the façade of perfection people present to the world.

As the middle of five kids growing up in dire poverty, the odds were low on Katriona O'Sullivan making anything of her life. She became a mother at 15 and ended up homeless. Five rackety years followed - barely coping, drinking to escape - until Katriona, now living in her father's native Dublin, hit rock bottom. Poor is the extraordinary story - moving, funny, brave, and sometimes startling - of how Katriona turned her life around.

Biddy Weir is a quirky girl. Abandoned by her mother as a baby, and with a father who's not quite equipped for the challenges of modern parenting, Biddy lives in her own little world, happy to pass her time painting by the sea and watching the birds go by. That is, until she meets Alison Flemming. Because there are a few things about Biddy that aren't normal, you see. And Alison isn't afraid to point them out to the world. All of a sudden, Biddy's quiet life is thrown into turmoil. If only there was someone to convince her that, actually, everyone's a little bit weird....

Meet Tom. Or Dr O’Grady, as he used to be called. When you pass him on the street, most people don’t even give him a second glance. You see, Tom isn’t living his best life. Burdened by grief, he’s only got his loyal dog, Bette Davis, for company and a rucksack containing his whole world. Then there’s Ruth and her son, DJ, who no longer have a place to call home. But Ruth believes that you can change the world by helping one person at a time - and Tom needs her help. There are a thousand ways to find your home - you just need to be brave enough to look for them.

Alice has been lying to herself for years, holding fast to the belief that the needs of her family far outweigh her own. But her outwardly successful marriage hides dark secrets, and for much of her life the children were the only reason she stuck around. These days, though her successful banker son lives nearby, his young wife seems to do everything she can to keep Alice at bay. As for Alice's other son, he has always been something of a stranger and has been traveling for so long that Alice isn't even sure what continent he is on anymore.

Callie Derbyshire has it all: her dream job as a carer at Bay View, finally she has found the love of her life. Everything is perfect. Well, almost. Ex-partners are insistent on stirring up trouble, and Callie’s favourite resident, Ruby, hasn’t been her usual self. But after discovering the truth about Ruby’s lost love, Callie is determined to give Ruby’s romantic story the happy ending it deserves. After all, it’s never too late to let love in again. Or is it?

It’s a beautiful day for a wedding. White roses scent the air and the summer sunlight streams in. A spoon chimes against a champagne flute and the room falls silent. And there he is - my husband - getting to his feet to propose a toast. He’s still handsome. His new wife is next to him, gazing upwards, oblivious. I’m not supposed to be here. All these years in the same town and I had no idea until I saw his name on the seating plan. He lived with me, once. Loved me. Small-town memories are long, but the people in this room don’t want to remember.

Reclusive Sally Diamond is thrust into the media spotlight when she tries to incinerate her dead father, causing widespread outrage. Now she’s the center of attention, not only from hungry reporters and police detectives, but also a sinister voice from a past she does not remember. As she begins to discover the repressed memories of her horrific early childhood, Sally steps into the world for the first time, making new friends, big decisions, and learning that people don’t always mean what they say.

Ever since Beth Bailey was a girl, she’s been in love with her best friend’s older brother, Mark. She’s continued to hold out hope that maybe, someday, he’ll love her back. But now Beth is thirty-five years old, and on the day of Mark’s wedding to another woman, she finally accepts the wake-up call she needs to move on.

As a child, Vicky Hall never had the sort of family she wanted. The least important person in her new step-family, ignored by her mother in favour of her two younger half siblings, Vicky was always an afterthought. Sitting alone at her graduation ceremony at the age of 21, she vows to create her own family and her own life, one which is full of the love and attention she has always craved.

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.

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....