Ruler of the Night

England's first train murder occurs, paralyzing London with the unthinkable when a gentleman is stabbed to death in a safely locked first-class passenger compartment. In the next compartment, the brilliant opium-eater Thomas De Quincey and his quick-witted daughter, Emily, discover the homicide in a most gruesome manner. Key witnesses and also resourceful sleuths, they join forces with their allies in Scotland Yard, Detective Ryan and his partner-in-training, Becker, to pursue the killer back into the fogbound streets of London, where other baffling murders occur. Ultimately, De Quincey must confront two ruthless adversaries: this terrifying enemy, and his own opium addiction which endangers his life and his tormented soul.