Jon is 59 and divorced: a senior civil servant in Westminster who hates many of his colleagues and loathes his work, he is a good man in a bad world.

Meg is a bankrupt accountant - two words you don't want in the same sentence, or anywhere near your CV. Living on Telegraph Hill, she can see London unfurl below her. Somewhere out there is safety.

As Jon and Meg navigate the sweet and serious heart of London - passing through 24 hours that will change them both for ever - they tell a very unusual, unbearably moving love story.