The actor who played "El Cepa" in Pilar Miró's film, Guillermo Montesinos, returns to the filming locations forty years later, the real ones of the "Grimaldos Case", to meet the neighbors. His visit serves as the common thread of the documentary in which specialists, jurists, former institutional managers, scriptwriters, team members and actors from Pilar Miró's film such as Mercedes Sampietro or Héctor Alterio will be interviewed.