1888: in the smoggy backstreets of a dangerous London, Jack the Ripper is at work. But his shadow is long, and in the deeper darkness another killer watches -- one with a more sinister origin. Dr. Thomas Bond is the man assigned to investigate the case and as he becomes ever more embroiled in London s seedy opium dens, he starts to wonder: is it a man that has brought mayhem to the streets of London, or a monster?