It’s about poverty in London and Paris and perhaps the most famous opening and closing lines in English literature: ‘It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness...’ and, at closing, ‘It is a far, far, better thing that I do, than I have ever done; it is a far, far better rest that I go to, than I have ever known.’