Coven (Basque: Akelarre) is a 2020 historical drama film directed by Pablo Agüero, starring Amaia Aberasturi and Alex Brendemühl.
He decides to do whatever it takes to make them confess, and tell him what they know about the akelarre, a ceremony with magical connotations, during which the Devil is said to initiate his servants and mate with them.
As a result she spends a whole day confessing a detailed sabbath festivity - in reality a twisted version of the party she and the girls held before their arrest.
Judge Rostegui postpones the girls' execution when Ana says she can only use her magic in every full moon night as she feels Lucifer's calling.
As they join hands, one of the village women elders sings in Basque about the tide brought by the full moon which motivates the girls to jump off from the cliff to Rostegui and his men's surprise.