Don't Look In The Basement -

As the patients’ behavior becomes more violent and erratic, it is eventually revealed that Dr. Masters is actually a patient herself, playing the role of a doctor after the original staff were killed.

The new administrator, Dr. Geraldine Masters, reluctantly hires Charlotte but maintains a tyrannical and suspicious grip on the facility. Don't Look in the Basement

Nurse Charlotte Beale arrives for a new job, only to discover Dr. Stephens has been killed by an axe-wielding patient. As the patients’ behavior becomes more violent and