Amy Dorrit's father is not very good with money. She was born in the Marshalsea debtors' prison and has lived there with her family for all of her twenty-two years, only leaving during the day to work as a seamstress for the forbidding Mrs. Clennam. But Amy's fortunes are about to change: the arrival of Mrs. Clennam's son Arthur, back from working in China, heralds the beginning of stunning revelations not just about Amy but also about Arthur himself.