Detective Murdoch investigates when a wealthy family's pregnant maid is found dead in an area frequented by prostitutes.

Detective Murdoch's investigation into the disappearance of a quiet librarian leads to a reunion with former love Anna Fulford and the discovery of a seamy underworld.

After saving his lover Anna from the Black Hand, Detective Murdoch bargains for her life. During his investigation into the murder of a shy librarian with a secret life, he encounters another young woman behaving seductively.