I didn’t turn up uninvited. He asked me to come.

He didn’t need to ask twice. He knew I’d agree. Kind Laura. Obedient Laura. Laura the soft-spoken schoolteacher with the faded cardigans and flat shoes. Nobody ever suspected someone like me would appeal to handsome, charismatic, happily married Ralph. I think even he was surprised by his choice. But I’m used to people underestimating me.

But then maybe I underestimated Ralph too. Because I never thought he’d be capable of doing what he did. It wasn’t only dangerous, it was very, very wrong. And I’m not talking about cheating on his wife.

As I said, I didn’t turn up uninvited. He asked me to come. The last thing on my mind was killing him.

A compulsively unputdownable domestic thriller about secrets, lies and how no marriage is ever what it seems from the outside.