When private investigator Matthew Hill picks up the call from his wife, Sally, his world comes crashing down. Their eight-year-old daughter, Amelie, is missing. One second, she was there, the next, she was gone. It’s the very nightmare they’ve been dreading. Long ago, Matthew left the force after a woman blamed him for her son’s death, promising that he too would one day feel her pain. It’s a threat that’s hung over his family ever since, and now it’s Amelie’s picture on the news.

It was their darkest secret. Three schoolgirls made a promise - to take the horrible truth of what they did to the grave. Thirty years later, Beth and Sally have tried to put the trauma behind them. Though Carol has distanced herself from her former friends, the three are adamant that the truth must never come to light, even if the memory still haunts them. But when some shocking news threatens to unearth their dark secret, Beth enlists the help of private investigator Matthew Hill to help her and Sally reconnect with estranged Carol.

On a train with her husband, miles from home and their four-year-old son, Ben, Sophie receives a chilling phone call. Two boys are in hospital after a tragic accident. One of them is Ben. She thought she could trust Emma, her new friend, to look after her little boy. After all, Emma’s a kindred spirit—someone Sophie was sure she could bare her soul to, despite the village rumours. But Sophie can’t shake the feeling that she’s made an unforgivable mistake and now her whole family is in danger.

I know my daughter better than I know myself, and if there’s one thing I know for sure at this moment it's that Maisie is not okay. My ex-husband, Shaun, and I are still friends. We would do anything for our beautiful little girl, Maisie. But now Shaun has moved in with Joanne, and suddenly Maisie has a brand-new family. And there’s something not quite right about it.... I know Joanne isn’t everything she says she is. Yet no-one will listen. I need to discover what she’s hiding. Because if I don’t, my daughter will be in terrible danger.

You think you can trust the ones you love most. But what if one secret could make you question everything? Every day, a woman like Louise passes you in the street: elegant, confident, determined. But underneath, she’s struggling. She doesn’t know her sister, Alice, has been scared of leaving the house since their mother died. She doesn’t know when Alice babysits her little boy, Archie, he sometimes sees things he shouldn’t. She doesn’t know Archie has a secret. A secret that could send cracks through the heart of Louise’s carefully constructed life....