The old and overcrowded penitentiaries are just a memory. Inmates now serve their sentence in a state of deep sleep that renders them harmless, and has drastically reduced recidivism. Until one day, a psychologist in charge of monitoring the mental state of inmates finds himself confronted with a prisoner over whom he’s lost all control.

One livid dawn, a cold and damp wind blows as a man walks alone through the darkness. Deputy Police Superintendent Francesco Prencipe is on his way to meet his best friend, Judge Giovanni Mastropaolo whom he hasn’t seen for almost two years. The men drive for two hours and exchange but a few words. Later that morning, the Judge is found dead, a single gunshot wound to his head. Francesco is the last person who saw him and his fingerprints are the only ones found in the house. But is he the murderer?