'Christmas Eve on the unit. The nurses’ station is in the middle of a long corridor, consisting of a low counter about ten feet long. A couple of psychiatric nurses are seated at laptops on wheeled stands, looking through medication orders, writing notes. A psych tech does rounds, checking each of the 22 single rooms every 15 minutes with a flashlight to the ground and signing their initials on a sheet to indicate that the patient is in their room and either awake or asleep. Many are awake.' (Introduction)