What You Don't Know: A witty tale of marriage and temptation

You've been together for fifteen years. You've got two gorgeous kids and a great career. All the boxes are ticked. You wouldn't be tempted by a plain, slightly balding man called Graham... Would you?

When Graham Parks walks into Helen Collins' life, the last thing she expects is to fall for him.

He's nothing like her handsome, successful husband, Alex. Exciting, alluring, all-consuming. But is it worth the risk?