A doctor and his assistant hunt down a vampire named Count Frankenhausen, who is terrorizing the populace.
Count Cagliostro, whose family has tried for generations to rid the world of vampires, instructs his daughter and her fiance to protect several valuable documents.
A vampire uses two sisters to seek revenge from the last member of a family that persecuted the undead in Europe, but his plan is threatened by a man who knows how to destroy him with a peculiar piece of music.
