Once the Spanish Civil War is over, the sons of the wealthy classes, who support politically and militarily the new regime, are preparing to begin their ascent in the social and economic sphere.
Since childhood, Luisa and Miguel have always been good friends; but several years later, as adults, when Spain faces the abyss of the Civil War (1936-1939), they support ideologically opposed camps.
Spain, late 19th century. Judge Javier Zarco finds in a cemetery a skull pierced by a nail and suspects that a murder has been committed.