Carlos wakes up in the middle of a forest and is pursued by a sociopath who will not stop to kill him. His only hope is another woman, who lives secluded in the woods and that will help him face his predator.
A cartoonist in the midst of a crisis uses a publishing house to look for work. The drawings of this one are not to the liking of the head of the publishing house which triggers a series of ungrateful events that they must try to solve.
August 1936, the beginning of the Spanish Civil War. 51 members of the Claretian community of Barbastro (Huesca) are martyred, die for their faith. The film recounts the last weeks of his life, since they are held until they are finally shot. During that time, they perform various writings they talk about their situation, of his fellow captives, people who saw them. These writings have been the basic testimony used to narrate this real fact in film version.