I'm sure that everything you do contributes to the sort of novel that you write. A lot of actors have an understanding of drama and a good ear for dialogue and also the rhythm of speech. Similarly, my 16 years in radio drama has influenced me. You only have 45 minutes, or 7,000 words, to tell a story, so every scene has to have a point.

Actors go inside the heads of other people and are not afraid of the complicated places you can find yourself.

My father died in France, and my sisters and I went over with my mum to bring back his body. I remember going to the funeral parlour in France and being given a laminated menu of coffins, and thinking, surely there is an ice cream at the back of here!

Perfect' is about a set-up that looks perfect from the outside - beautiful country house, beautiful wife and mother, everything where it should be - and the deep fissures that, in fact, lie beneath that. 'Perfect' was partly a response to the shock of my first book, 'The Unlikely Pilgrimage Of Harold Fry,' being a success.