Mason Brand has fled his life as a celebrated photographer and renounced his past. He is living rough, as a hermit in the Welsh hills, when something happens to him among the mossy oaks. He begins to hear "the calling." Years later, giving society a final chance, Mason is living with sight of a colossal landfill dump, and he hears "the calling" again. This time he will heed it, and it will lead him, for he is called to assist in a terrible birth - out of the waste of human society comes a thing, and its enemy is human. Tackling the issue of the environment and landfill sites, this chilling fable of eco-horror asks what happens to all the unwanted things we bury, because they just won't go away.