The final night’s work approaches for the staff of an insane asylum. A minimal crew of security and researchers remain to ensure the patients behave as expected before their transfers to a maximum security prison. Struggling with memories of abandonment, Dr. Helen Kingford finds herself on the brink of quitting her job as a psychologist. Following his forced retirement, the hospital's head of security decides on a destabilizing course of action leading to chaos and destruction within the asylum....