Former secret policeman Leopoldo Guzmán is the key to unlocking some of Spain's darkest secrets and forensic investigator Ana María Galindez determined to track him down. Madrid, 1982: The dictator is dead and Guzman is finally back in the capital. Years of bitter exile in the provinces doing the dirty work for the sinister Head of Military Intelligence have left their mark on the Comandante. He wants out. But he needs money first... and what better way to get it than blackmail? After all, he knows better than anyone where all the bodies are buried. Madrid, 2010: Forensic Investigator Ana Maria Galindez has been tracking Comandante Guzman by the trail of dead he left behind him: 15 tangled corpses in a disused mine, three skeletons in a sealed cellar in the Basque country. Guzman is the key to unlocking some of Spain's darkest secrets. But are there are those who will do anything keep the past buried. By threatening to disturb the dead, both Guzman and Galindez have placed themselves on the same lethal trajectory.