An NYPD detective's life was altered when he attempted to apprehend an infamous serial killer who tormented the city of New York and whom he battled tirelessly to arrest. Soon, he will realize that this city is not as natural as it appears; darkness hides in the alleyways, nocturnal predators prowl the busy streets, and relentless hunters wait for him to make a mistake. How will he deal with his situation? Will the beast within him consume him? Or will his humanity triumph in the end?

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Not a reincarnation fanfic, nor a power fantasy. Will focus heavily on the vampire and monster side of marvel. heavy AU.