Set in the 13th century in Toledo, two friends, Lope Sandoval and Alonso de Carrillo, face each other in a duel to the death for the love of Inés de Tordesillas. The darkness surrounding them in the forest is absolute, with only the light of lanterns illuminating the duel. Supernatural forces and inexplicable events will determine the fate of the participants in this night of terror, where the best and the worst of human nature converge.