The Dead Pit

Dr. Ramzi (Danny Gochnauer), a deviant who enjoys torturing his patients, is killed by fellow doctor and buried in the basement of a mental health facility. Twenty years later, the hospital is up and running again and a "Jane Doe" (Cheryl Lawson) arrives at the institute with amnesia. Upon her arrival, a major earthquake rocks the building and unearths the now undead Dr. Ramzi and his legion of zombie patients so he can continue his work. (official distributor synopsis)