In a windswept British seaside town, single mum Alice Lake finds a man sitting on the beach outside her house. He has no name and no idea how he got there. Against her better judgment, she invites him inside. Meanwhile, in a suburb of London, 21-year-old Lily Monrose has been married for only three weeks. When her husband fails to come home from work one night, she is left alone in a place where she knows no one and with the police telling her that her husband never existed.

On a cool June morning, Isa Wilde, a resident of the seemingly idyllic coastal village of Salten, is walking her dog along a tidal estuary. Before she can stop him, Isa's dog charges into the water to retrieve what first appears to be a wayward stick - and to her horror, Isa discovers it's not a stick at all...but a human bone. As her three best friends from childhood converge in Salten to comfort a seriously shaken-up Isa, terrifying discoveries are made, and their collective history slowly unravels.

Alex Dale is lost. Destructive habits have cost her a marriage and a journalism career. All she has left is her routine: a morning run until her body aches, then a few hours of forgettable work before the past grabs hold and drags her down. Every day is treading water, every night is drowning. Until Alex discovers Amy Stevenson. Amy Stevenson, who was just another girl from a nearby town until the day she was found unconscious after a merciless assault. Amy Stevenson, who has been in a coma for fifteen years, forgotten by the world.

In 1986, Eddie and his friends are on the verge of adolescence, spending their days biking in search of adventure. The chalk men are their secret code, stick figures they draw for one another as hidden messages. But one morning, the friends find a chalk man leading them to the woods. They follow the message, only to find the dead body of a teenage girl. In 2016, Eddie is nursing a drinking problem and trying to forget his past, until one day he gets a letter containing a chalk man — the same one he and his friends saw when they found the body.

Fifteen-year-old Rosie lies in hospital fighting for her life. She’s trying to tell her mother what happened to her, but she can’t speak the words out loud. Toni is a doting and over-protective mother, terrified for her daughter’s life. Having lost her husband in a tragic accident, Toni has dedicated her life to keeping Rosie safe from harm. She needs to know what secrets Rosie has been keeping and how she ended up in a hospital bed - but Toni has a secret of her own....

Zoe has an unconventional pen pal - Mr. Stuart Harris, a Texas Death Row inmate and convicted murderer. But then again, Zoe has an unconventional story to tell. A story about how she fell for two brothers, betrayed one of them, and killed the other. Hidden away in her backyard shed in the middle of the night with a jam sandwich in one hand and a pen in the other, Zoe gives a voice to her heart and her fears after months of silence. Mr. Harris may never respond to Zoe's letters, but at least somebody will know her story...

Neve comes across a troubled woman called Isabelle on Waterloo Bridge late one night. Isabelle forces a parcel into Neve's hands and jumps to her death in the icy Thames below. Two weeks later, as Neve's wreck of a life in London collapses, an unexpected lifeline falls into her lap - a charming cottage in Cornwall left to her by Isabelle, the woman on the bridge. The solution to all her problems.

Single mother Callie has come to rely heavily on her best friend Suzy. But Callie suspects Suzy's life isn't as simple as it seems. It's time she pulled away - going back to work is just the first step towards rediscovering her old confidence. So why does she keep putting off telling Suzy about her new job? And who will care for her rather frail daughter, Rae, while she is gone?

The perfect daughter. The perfect girlfriend. The perfect murder? Jenna is seriously ill. She's lost all hope of getting the heart transplant she needs to live. But just as her life is ebbing away, she receives a donor heart from a girl called Callie. Who was Callie and how did she die? Jenna is determined to find out.

You love your family. They make you feel safe. You trust them. Or do you...? When 15-year-old Billy Wilkinson goes missing in the middle of the night, his mother, Claire Wilkinson, blames herself. She's not the only one. There isn't a single member of Billy's family that doesn't feel guilty. But the Wilkinsons are so used to keeping secrets from one another that it isn't until six months later, after an appeal for information goes horribly wrong, that the truth begins to surface.

Her name is Beth. She came into my life when I needed her the most. We lead very different lives, but she’s the only person who understands me. She was the only other witness to the terrible accident on the street between our homes - the only person who saw the cracks in my perfect life before I had the chance to cover them up.

In this “outstanding debut thriller” (Booklist, starred review), Helen’s idyllic life—handsome architect husband, gorgeous Victorian house, and cherished baby on the way—begins to change the day she attends her first prenatal class. There, she meets Rachel, an unpredictable single mother-to-be who doesn’t seem very maternal: she smokes, drinks, and professes little interest in parenthood.

When Ella wakes up in a hospital following a hit-and-run incident, she is scared and confused. Close to tears, her eyes fall on a get-well-soon card on the window sill, and the nurse reassures her that her loving husband will be back soon. But Ella has never been married. In fact, she has lived alone her whole adult life; working hard, rarely socializing, quietly harboring a terrible secret from her past.

There are two sides to every secret. When her beloved father dies, Josie is devastated to uncover a secret life he has led with another family: another house, another woman, and a half sister, Valentina. Born in the same week, in the same hospital, they look so physically alike they could be mistaken for twins. But the similarities end there.... Josie is sweet and reserved, a counsellor with the perfect boyfriend and the perfect life. Valentina is damaged and reckless, and she always gets what she wants.

Emma O'Donovan is 18, beautiful, and fearless. It's the beginning of summer in a quiet Irish town and, tonight, she and her friends have dressed to impress. Everyone is at the party, and all eyes are on Emma. The next morning, Emma's parents discover her collapsed on the doorstop of their home, unconscious. She is disheveled, bleeding, and disoriented, looking as if she had been dumped there. To her distress, Emma can't remember what happened the night before.