Plot synopsis: Jacobo is a young sculptor that returns to native city, Santiago of Compostela, to see his mother, locked up a psychiatric hospital for to kill to her husband, when he believed she dead years ago. To their arrival, visions of Mateo, his dead father eighteen years ago, begin to persecute to him, since his father died by shot gun, peculiarly, when thirteen peals sounded in the cathedral, fact what obsesses to Jacobo. After watching several times, Mateo convinces his son to make the work for the cathedral that his father couldn't finish in life, but what begins as a simple work becomes a madness spiral when Jacobo discovers the true intentions of the ghost of his father: to kill to his son to usurp his body to finish the statue, and after to return to the life.