Because he forgot his identity card, Elias cannot take the entrance exam to Sciences Po. In search of a job while waiting to be able to take the exam again, he becomes an educator in a children's home. Confronted with an environment he doesn't know how to work, Elias doesn't yet know how much this experience will change his life.

After waking up to find himself all alone in an apartment where a massive party was being held the night before, Sam is immediately forced to face a terrifying reality: the living dead have invaded the streets of Paris.