A group of ambitious mobsters hears of a mysterious serum that can grant immortality. Led by an ambitious figure, they plan a search for the serum in a cursed place with a dark history. One of them begins to feel a sense of foreboding, but greed overshadows their fear. When they finally confront the owner of the serum, a rash decision is made: a shot is fired. However, those shot do not die; instead, they awaken as monstrous creatures. Slowly, one by one, they become infected, losing their humanity, and transforming into something immortal. Only one remains. He survives, fights, and thinks he has found hope. However, when he awakens, he realizes that everything has changed. His fallen friends now stand again not as humans, but as loyal followers of darkness. Now, the final choice lies in his hands: Join the darkness... Or die as a human? But in this world of paradox, death is not the end... But the beginning of something even more terrifying.