During the final throes of the last Carlist war, a little girl is rescued from an orphanage by a mysterious woman who lives deep inside the forest.

French Basque Country, year 1609. The men of the region have gone to sea. Amaia participates with other girls of the village in a coven celebrated in the forest. Judge Rostegui, who has been charged by the king with ridding the country of the devil’s wiles, arrests them and accuses them of witchcraft.