Leah and her three best friends get changed into their pyjamas, eat pizza, and argue about what film to watch. They laugh together, until the early hours. But the next morning, Leah blinks open her eyes and sees three empty sleeping bags. The other girls are gone. Twenty years later. In her small hometown, still-haunted Leah has never been able to shake off the rumours and whispers. How could she have slept through it all? She must know what happened.

Death stalked the Vale. In every corner, every whisper. They just didn't know it yet. Six neighbours, six secrets, six reasons to want Olive Collins dead. In the exclusive gated community of Withered Vale, people's lives appear as perfect as their beautifully manicured lawns. Money, success, privilege - the residents have it all. Life is good. There's just one problem. Olive Collins' dead body has been rotting inside number four for the last three months. Her neighbours say they're shocked at the discovery, but nobody thought to check on her when she vanished from sight.

Our new home was meant to be a chance for us to start again; to make new friends and forget the past. And as I look around the barbeque we’ve thrown for our neighbors, I dare to dream that things will be all right. I watch my husband joking as he flips burgers and my daughter turning cartwheels on our sun-bleached lawn. And then my gaze falls on my son, Jacob, and his new girlfriend, Rose, in her light blue jeans and her green crop top. There is a worried expression clouding her beautiful eyes.... The next day I get a call from Rose’s mother that chills me to the bone.

The story follows the four Robicheaux sisters as they return home for their parents' wedding, at the beautiful Hotel Sorrento where they all grew up as children. For the first time in 15 years, the sisters are back together—and it doesn't take long for long-buried secrets to surface...

I gaze at my husband’s once handsome face, so still and pale in the hospital bed. The doctors say I should keep talking. He might be able to hear me even after the terrible accident that left him fighting for his life. But all I have to whisper to my husband is this: "I know what you did."