In a small Dutch village in the Dark Ages, Frieda (Anneke Sluiters) attempts to be a good wife, contributing to her community, saying her prayers, focusing on becoming a mother and doing what is expected of her. But after a traumatic encounter with one of the villagers in the woods, a presence saves Frieda’s life, latching itself onto her and throwing her belief system into question. Returning from the woods unscathed, her community becomes suspicious that it was not God who brought her back safely, but a dark force cloaked in fog that lurks beyond the forest. As the otherworldly creature follows Frieda, strange things start to occur in the village, and Frieda is accused of witchcraft. As she tries to defend herself, her rage only grows and her family and friends turn their backs on her in the name of God.