Tom and Ella Barclay think they have life all worked out: with a smart house in suburbia, two lovely children at private school, creative and interesting jobs. And best of all, a happy marriage...But beneath the surface, things are not so serene. Tired of his respectable progress through life thus far, Tom decides to embark on a tantalizing adventure - to have an affair. The only snag is this proves to be rather more difficult than he'd been led to believe. Meanwhile, Ella despises the hordes that stream through the stunning fifteenth-century castle where she works, and berates herself for not spending enough time with the children. But then fate turns the Barclays' lives inside-out in a way they could never have imagined. Forced to look the world from a very different perspective, Tom and Ella begin to fall through the cracks of their self-made facades.