Forgive me, mother: Ares, 35, lives in an abandoned city with his bedridden mother and an elderly professor—the only ones who refused to flee after a ghostly invasion drove out the population. In this post-apocalyptic reality, without electricity or communication, Ares and the professor wander through empty streets, unable to understand the ghosts' purpose. When the professor urges him to escape west, where distant radio signals still exist, Ares must make a painful choice: leave his mother behind in search of a future or stay and become a ghost himself.