Jose Mari (Karra Elejalde) and Primitivo (Manuel Manquiña) are two detectives at their worst professional moment and also unemployed. Both are clear representatives of the two irreconcilable Spains, after the Civil War. The unexpected arrival of Gaje (Arturo Valls ), a trickster and troublemaker gypsy, change the lives of the detectives , proposing a rather crazy mission, which will have the focus to the Spanish Royal Family. It seems that the fate of the detectives will change, but not for the better, but rather, for the worse.