A journalist conducts an interview with the perpetrator of the murder of the Agirre family. A phone call and an old homemade recording hide the clues to what happened.

The Agirre family, made up of Iñaki and Miren, and their children Aitor, Janire and Arene, is a wealthy family that enjoys a privileged position in Basque society. At the beginning of the story, a journalist interviews the perpetrator of the macabre murder of the owners of the well-known company “Talcos Agirre”. A call to the emergency services alerts the police to the event. The viewer is immersed in the intrigue surrounding the case until the identity of the murderer is revealed.