En the sierra of Alcaraz in 1911, an anarchist hears the story of a bandit named Jacobo de Gracia Expósito, alias El Derriñonador, from a companion in jail and transforms it into an ironic manuscript in order to get a pardon and which helps him to deliver a blow to a powerful landowner. By contrasting reality and fiction, with the figure of Pajaros he shows the process of converting a healthy individual, but with an almost monstrous sexuality, in legend, and suggests the difference between the language of the intellectuals and the common people as a motive for the failure of the Spanish Revolution. The tradition of the picaresque novel, the absurd and the search for new resources for expression all meet in this ambitious, carefully documented novel with a constant and savage humor that invites us to reflect on permanent individual and social conflicts.