The world is shrouded in toxic fog. One can forage for food in the forest only with a gas mask and the endless dusk might hide a monster. The pitiful existence is disrupted by an unexpected absence and the family, surviving in the cabin, turns against the father. Amazingly visual and chilling, the post-apocalyptic horror is also a powerful family drama surpassing genre conventions with its in-depth focus on the darker corners of the human psyche.