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 22 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.