When I wake up with the sun in my eyes the morning after my daughter’s birthday party, I know something is very wrong. I go straight to her room but feel a surge of panic when I see an empty bed. Downstairs everything is totally quiet, and the front door is locked. Why didn’t I hear her scream? Who took our little girl?

My husband says I’ve been struggling since Skylar was born and that sometimes I forget things. But I remember every moment of my daughter’s party - including him locking the door after our family and friends left. Yes, we both had a drink and I slept heavily but I know I would have heard my child cry. A good mother always does.

My therapist says I need to stand up for myself. She wants me to confront my husband about the woman I heard him talking to the other night when he thought I was asleep. And about the child’s toy that I found that does not belong to Skylar. Is he hiding something?

But as the hours race by I soon realize I was totally wrong about everything that happened that night. I thought I’d put my past behind me long ago but I was wrong. All I know is this: I’ll do whatever it takes to save my child.

Will you believe me?

A heart-pounding, unbelievably twisty psychological thriller that will have you sleeping with the light on! Fans of Gone Girl, Behind Closed Doors, and The Stepdaughter will be utterly gripped.