Welcome to 1830s Bermondsey, London's most notorious slum, a land of gang wars, freak shows, and home to every depravity known to man. Dr. Thomas Grant, a disgraced physician, adopts Wynfield, a ten-year-old thief savagely battered by a gang leader for insubordination. The boy grows up to be a slender, idealistic opium addict who worships Victor Hugo. By day he steals and resells guns from a weapons factory. By night he amuses filthy crowds with his adolescent girlfriend—a fragile witch with wolfish eyes. Wynfield senses that he has a purpose outside of his rat-infested kingdom, but he never guesses that he had been selected at birth to topple the British aristocracy.