French Basque Country, year 1609. The men of a small fishing village have gone to sea. Judge Rostegui, who has been charged by the king with ridding the country of the devil's wiles, arrests Ana and her friends and accuses them of witchcraft.

Spain, Basque Country, 17th century. At night and through the mountains, Kattalin escapes from her farmhouse and, while wandering through the deep forest, she senses a presence that stalks her.

Almudena receives news of her teacher's death. No one has heard from her in a long time. This leads her to investigate and rethink her life.