It is set up so that they are writing provate letters to no-one to let out their sad emotions and frustrations at the inability to conceive. The focus of the story is love. Whether love between the two is strong enough to survive if they cannot conceive or reliant on a child. Each character also has their own private battles. Sam is a BBC worker dreaming of writing a hit programme or film, but he has no inspiration. Lucy is an agent's assistant, who's newest client happens to be the hottest new, gorgeous British actor on the scene. As the two face their separate battles, can they focus on Lucy's main goal, a child. Sam isn't as determined seemingly to have a child as he feels that it would just be a bonus, he feels he loves Lucy enough to be happy with her forever, child or not.
The story has great one liners that will make even the person with the least sense of humour in the world to crack a smile. It is funny throughout ut also has the touch of seriousness also. Tears could flow at points. I enjoyed this, finished it just this afternoon. If you like his other books you'll love this too. If you hve never read anything of his before this could be a good start as it shows how he can hold a story well and keep things moving. It also dislays the difficult technique of balancing two characters roles equally, which he succeeds seeminlgly with ease.
Enjoy.