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.

An extended family reunites after a long time to celebrate the 50th wedding anniversary of their grandparents on an idyllic island. However, they remain stranded there for longer than expected, causing secrets and long-held grudges to break out.