The French countryside, 1914. With the Great War ravaging France, young patriot Jean leaves his beloved Adèle behind to do his part. But war is a beast; there is no guarantee of a safe return. As intense nightmares haunt her sleep and indecipherable visions manipulate reality, Adèle sinks deeper and deeper into uncertainty and despair until a forbidden discovery offers her enlightenment. Somewhere in the gloomy woods, occult secrets reveal the path to unlock eternal life, but at a steep price. Now, the thing behind the door is real. And blood is the least it demands.