A girl tormented by recurring nightmares develops a personal ritual to cope: she writes down each dream immediately upon waking and gives it a name, hoping that by capturing her fears in words she can keep them at bay. But one dream eludes all attempts at labeling—a formless, indescribable nightmare that refuses to be pinned down. When that unnamed nightmare materializes into a colossal monster, it breaks free from the confines of her mind and spreads across the real world, throwing her normally quiet town into pandemonium. As the creature rampages and the chaos escalates, the girl must find a way to confront the fear she could never put a name to, face the monster born from her own unresolved terror, and reclaim control over the waking world before the nightmare consumes everything.