Mute, a red-haired cowboy who cannot speak and has no memory, wanders through a burning desert populated by hungry mutant creatures.
One night, he hears a strange voice urging him to go to Vile High School, a vast and mysterious establishment guarded by monstrous robotic cheetahs.
At the same time, four teenagers, Antoine the curious one, Marianne the brave one, Josie the loving one and Jonathan the immature one, find out that their headmaster secretly tortures and kills pupils.
What is he hiding in the depths of the high school? What is the true purpose of its occupants? And, above all, who is this disturbing, white-bodied being who scans the horizon from his bathtub?