About the title
Gripping events unfold in an alternate reality of World War I. A group of soldiers, with tremendous effort, breaks away from an enemy detachment and takes refuge in an underground bunker, where the air will soon run out. The exhausted warriors find themselves trapped, but at the same time feel a bit of relief. Over time, they sense a superhuman threat in what seemed like a safe place, one that is frightening with a diabolical, otherworldly presence. Men who were comrades just yesterday now see enemies in each other. The dark force of a mystical otherworldly evil grows stronger, and a commanding voice orders them to harm one another without their former pity. At first the soldiers resist the mysterious being's commands, but they gradually give in, and a dire situation arises in which it is highly likely that no one will manage to leave the bunker alive.