Carmen is a beautiful woman working in a business that is dedicated to smuggling. One day, Carmen fights and hurts to a smuggler woman, so a sergeant in the National Guard, José Navarro, stops detain her. In doing so he also falls in love with her, but jealousy will destroy his passion.

Commissioner Leon (Miguel Angel Landa) of the Technical Judicial Police is assigned to the kidnapping of a child of the upper class of Caracas. The details of the kidnapping the attention of Leon, as there is no evidence of violence in the child's home, or witnesses to the abduction. Based on that Leon believes that the hijackers knew the boy and soon begins to suspect several young people from wealthy families of Caracas.

Commissioner Leon (Miguel Angel Landa) investigates the murder of a woman in a population near the capital. The woman was raped before death and the case is complicated when his brother becomes the prime suspect, since it is a priest (Eduardo Serrano). Because of the implications that inquiries might have, Leon is pressured to keep the event as a "crab" (Cangrejo, or a unsolvable case), but he decides to comply with the law.

The story takes place in 1862, just after the federal war ended. A pair of Gothic colonels go in search of a juicy inheritance, buried in a farm that is considered invaded by terrifying ghosts. Ignoring the mysterious stories they hear, they go to work. There they are victims of intentional attacks, which in the end they discover are carried out by a little girl, who is the daughter of the former foreman of the owners of the big house, so she feels attacked by the intruders.