IZIDINE, a recently promoted Police Detective, is called to an elderdy home set in a former colonial fortress to investigate a crime: VASTO EXCELÊNCIO, the home's director has been murdered. MARTA, the home's nurse tries to steer the investigation to the real crime, the home's very own existence. IZIDINE is confronted with a surprise: all the residents confess that they are the murderer. Their motives going from the way the director treated the elderly, beating them, the domestic violence perpetrated by the director on his own wife's, or the nurse confessing a love affair with the deceased who forced her to have an abortion. The detective will slowly discover that the real crime was a revenge. The director used the Home to smuggle weapons, which the elderly made disappear, sentencing him to be killed by his buddy criminals.