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.
Police officer Elena deals with cyber crimes and violence against children. The discovery of a young boy's body in the Venetian Lagoon brings her back to the city she left twenty years earlier.