Nitro City, 2034. Leon "Catwalk" Caliber left his cop job in DC behind, only to find that the City of Angels held more dangers than expected. Treatment for his experimental cybernetics are expensive, and Cat is taking dangerous side jobs to pay the bills. During one of those jobs, Cat crosses paths with a mysterious female assassin wielding a katana. He is framed for murder and on the run from Corporate Security forces. Cat goes underground, only to find that Nitro City has an infestation...of vampires. He soon finds himself in the front lines of a city-wide war between the creatures of the night. Can the killer with a conscience escape the law, defeat the undead, and live to see another day?