Sam (Anders Danielsen Lie), who seems to be out of place, comes to the noisy party organized by his ex-girlfriend. People indulge in carnival, singing and dancing all night, and Sam shuttles through anxiously, eager to get what he wants as soon as possible and leave quickly. Perhaps because of his overly tense nerves, Sam, who was tired, slumped on the sofa and fell asleep, and did not hear the banging and screaming from outside the door at all. The next morning, Sam woke up and was about to leave with his personal belongings, but found that the walls and floors of the room were covered with blood. All the living people before had turned into bloodthirsty and inhuman zombies. Zombies ran wildly on the streets, searching for prey. Helpless Sam was forced to be trapped in the apartment. He tried to escape, but the whole city seemed to be dominated by despair and death... This film is adapted from the novel by French writer Pit Agarmen.