Actor Jeremy Irons embarks on an epic journey through the halls of the Prado Museum in Madrid, Spain, two hundred years after its inauguration, along corridors where thousands of masterpieces of all time tell the lives of rulers and common people, and tales about times of war and madness and times of peace and happiness; because, as Goya said, imagination, the mother of the arts, produces impossible monsters, but also unspeakable wonders.

Documentary on the first hundred years of the history of the Prado Museum. Based on the exhibition "The 19th century in the Prado" (October 2007-April 2008). Study the first year of the Prado Museum, its evolution, the concept of the mentioned exhibition, the Museum Collection, the masterpieces and the restoration work.

For three and a half centuries, from the same day that Diego Velázquez (1599-1660) applied his last brushstroke to the canvas, the enigma of “Las meninas, o La familia de Felipe IV” (1656) has not been deciphered. The secret story of a painting unveiled as if it was the resolution of a perfect crime.