Benito Freire, a pedlar in a small village in northern Spain suffers from epileptic seizures and rumours start to spread that he may be a werewolf and responsible for a series of killings. The local Abbot is called upon to form a team to investigate, in an effort to halt the harrowing murders.

A small village in Navarre, Spain, XVII century. Garazi's grandmother is burned at the stake when accussed of being a witch and convicted by an inquisitor, something that brings Garazi under suspicion and eventually into prison, where she is atrociously tortured and humiliated.

Daniel is a member of The Organization. He is sent on an assignment to Bilbao to determine what has become of a lad his age, a former member. He takes over the boy's room in an odd rooming house. When he is given the photo of the boy's girlfriend, he is so taken with it that he puts off his quest. The Organization requires him to continue, however, so he tracks her down to a remote fishing village.