Two sisters navigating the no man's land between childhood and adulthood have to deal with the consequences of their actions after one of the horses of their farm loses one eye.

In the harsh post-war years' Catalan countryside, Andreu, a child that belongs to the losing side, finds the corpses of a man and his son in the forest. The authorities want his father to be made responsible of the deaths, but Andreu tries to help his father by finding out who truly killed them. In this search, Andreu develops a moral consciousness against a world of adults fed by lies. In order to survive, he betrays his own roots and ends up finding out the monster that lives within him.