1810 England, the height of the Napoleonic wars. It was thought that humans walked the path of enlightenment leaving monsters and dark things behind. However, those monsters and night stalkers merely hide in the darkness, as a young maid, Bernadette, soon finds out.
Rogziel is the name of one of four Archangels representing the wrath of God. It's also the word that seems to bring our vamp-boy to heel... except he seems to like it ('encore' means 'again' in case you didn't know).