Radio Films S.A.E. S.A.

Antonio, a young man with a modest job in a small town, leads a monotonous existence until he is transferred to Barcelona to work in an architecture studio. From that moment, a new life opens before his eyes. He befriends Lorenzo, one of his classmates. Lorenzo is more experienced than Antonio and shows him a new, more sophisticated life in which Antonio feels out of place. Also, Antonio falls in love with Lorenzo's sister.

Mario Colomer, prime minister, is burdened by overwork. His problems seem solved when his assistants tell him about Juan Brandel, a possible substitute, just like him physically, but with a funnier and more adventurous personality. At first the plan seems to work and the politician begins to gain popularity. The plot thickens when the 'original' becomes jealous of the 'copy' and the substitute exceeds his functions.