Thirteen years ago. Teenager Lucie babysits our little son Henry. She’s like the daughter I never had. And she believes we’re the perfect family – just me, my husband and Henry.

But Lucie doesn’t really know what’s happening behind closed doors. Until one night, she sees something so awful she leaves. And my family is never the same again…

Now, Lucie has reached out, desperate for my help. It’s been thirteen years of silence, but I would recognise her voice anywhere. She’s back: and so are the secrets she took with her.

What did she see that night? And does she know my side of the story, or only his?

I hope she knows what she’s doing. Because there is no line I won’t cross to protect the ones I love – or the secrets I’ve worked so hard to hide…