chunk: In London, William Dorrit, imprisoned as a debtor, has been a resident of Marshalsea debtors' prison for so long that his three children – snobbish Fanny, idle Edward (known as Tip) and Amy (known as Little Dorrit) — have all grown up there, although they are free to pass in and out of the prison as they please. Little Dorrit, devoted to her father, has been supporting them both through her sewing.