Gone Girl meets Sliding Doors in this edge-of-your-seat thriller from the Sunday Times top 10 bestseller

When Joanna hears the footsteps behind her that every woman dreads she makes a snap decision. She turns and she pushes, sending her pursuer tumbling down the steps to lie motionless on the floor.

Reveal - Calling 999 Joanna waits for the police to arrive. For judgement, for justice, whatever that may be. She just needs to hope her husband will stand beside her.

Conceal - She didn’t mean to do it. She was scared, she panicked. And no one saw. No one will know. If she leaves now. If she keeps quiet, and prays silently to never hear that knock on the door …