One day the youth novel writer Mauricio Ballart receives the manuscript that his cousin in the country house she has with her husband in Burgo de Osma, and where she lived for forty years. The manuscript, of unknown authorship and narrated by a female voice named Leonor, excites the curiosity and imagination of the Hidalgos, since everything in it seems touched by mystery. Tom?s decides to put it in the expert hands of his friend to enlighten them,...