Spain, under Philip IV (1621-1665). The film is based on a novel by Gonzalo Torrente Ballester. The King (Gabino Diego) is stunned to see the naked body of Marfisa (Laura del Sol), the most beautiful prostitute of the town and Court. After that, he also wants to see the Queen (Anne Roussel) naked. However, the King, despite the opposition and the scandal of the Church, will not stop until he reaches his wishes.