I pinch the screen to zoom until I’m staring at the face of a ghost. A man with very short hair, staring directly at the camera with piercing brown eyes.

He is as he was when I last saw him: wrinkles around the corners of the eyes and a knowing smirk. That’s the expression I see when I can’t sleep.

My body tenses. It can’t be him. It’s not my ex-husband. It’s not David.

I know that better than anyone because he didn’t walk out on me.

He didn’t disappear two years ago and he’s not a missing person.

I know that for a fact because I’m the one who killed him.

A brilliantly twisty thriller which will have fans of The Girl on the Train and Gone Girl absolutely gripped.