Martin, a specialist in Spanish art, is entrusted from Turner, his former boss at a London art gallery, to investigate all matters relating to the origin of a supposed copy of "The Rokeby Venus," the wonderful painting by Velzquez, which has been found hidden in an old piece of furniture. In the midst of a turbulent process of self-seeking, Martin will be involved in the confusing world of art, and will move from London, Madrid and Rome, in the footsteps of the painter and his works.