A body pulled from the Thames is identified as young John Harmon, heir to a fortune made in dust-contracting. Bella Wilfer, his wife-to-be by terms of old Harmon's will, goes into mourning though she has never met her fiancé.
Lizzie Hexam, daughter of the corpse robber who found young Harmon's alleged body, is being courted by two desperate characters: Eugene Wrayburn, a dissolute barrister, and Bradley Headstone, a mentally-deranged schoolmaster.