Diego Acuña was one of the five thousand children taken to Russia during the Spanish Civil War. He was educated in the communist pedagogy and prepared for a career as an agitator that developed in France and Italy under the command of Goeritz, one of the party officials. One day he was commissioned a delicate mission: assisting in the murder of his father, because he turns out to be a major obstacle to the illegal actions of communism. To do so he moves to Spain, pretending he is bored of Soviet doctrine