La Muerte Ronda a Mónica plot
Federico has become headman of the society "Erozonas" largely thanks to the actions of his wife, whom he neglects and from time to time cheats with his mistress Eva, a fashion model. However, Elena also has an affair with Eva and tells Monica that Federico is unfaithful to her. When Monica finds out, she wants a divorce, but Federico tries to convince her that he still loves her. One day Federico has to go to Barcelona for urgent matters. It is precisely then that dramatic events take place in the isolated villa where Monica is staying, from aggression to murder.