The main plot revolves around a hidden treasure. The story begins when a gang steals ten million dollars worth of diamonds in Uruguay. To escape the police, one of the thieves, Rodolfo Torres de Almeida, flees to Argentina. His partner, Ivo Simeone, travels to São Paulo with the jewels. Ivo decides to hide the precious stones and, to ensure he doesn't forget the hiding place, has a map tattooed above the buttocks of a girl, the daughter of his neighbor. The thief takes care to photograph the girl so he can identify her in the future. Ivo is arrested and, eight years later, when he gets out of jail, he is run over and killed. Before dying, however, he manages to tell his son Rodrigo the secret about the treasure map. The young man follows the clues given by his father and discovers that the young woman with the tattooed map is Elisa, a novice nun cloistered in a convent, about to take perpetual vows.