Marie je ljubka vampirka, ki ji vest ne da, da bi pobijala nedolžne in dobre ljudi, zato svoje vampirske apetite po krvi raje poteši na zločincih. Pittsburgh, kjer trenutno poteka prava mafijska vojna za prevlado v podzemlju, je pravi kraj zanjo. Potem ko umori enega od pajdašev neusmiljenega mafijskega kralja Sala Macellija, se Marie ogreje kar za samega šefa mafijske združbe. Žal Salu uspe pobegniti, za nameček pa se spremeni v vampirja. Kot takšen pa ima zdaj na voljo še več moči in možnosti, da prevzame prevlado v podzemlju.
Marie has two appetites, sex and blood. Her career as a vampire is going along fine until two problems come up, she is interrupted while feeding on Sal (the shark) Macelli and she begins to develope a relationship with the policeman who has been trying to put Sal away. Sal wakes up in the morgue very confused and very thirsty. He goes back to his old haunts and begins to create an organized crime family of vampires while Marie and her policeman lover hunt him.