London, December, 1952. At the beginning of what will come to be known as the Great Smog, Ruby Palmer waits to be released from prison. At home her daughter, Florrie, also waits, knowing that the moment her mother returns she herself will face a choice: stay where she is, in the heart of her matriarchial and criminal family, or leave it all to make a safer, duller life with a decent young man. But what will she do if she's too crooked to go straight, and too good to go bad? Over the next four days, as London grinds to a halt in impenetrable and poisonous fog, Florrie will have to find her own path and the courage to stumble along it. Four Days of Fog follows the last days of a crumbling female gang in post-war London, in a fog so thick that you can't see your own feet. It's a story of family, of finding your way, and of deciphering a route through the greyest areas of morality.-- Provided by publisher.