A small boy witnesses his brother being killed in surgery, grows up to become a monster with a scalpel.

Dr. Julian Mater is suspended and gets his license revoked for performing experiments on dying patients in cellular regeneration. A couple of years later, he returns to the hospital that condemned his work to begin practicing his grizzly experiments once more.—Humberto Amador

Gripping medical chiller about a deranged ex-doctor stalking a hospital killing off patients. There's the arrogant, suspiciously named Dr. Stein, and the hospital administrator who runs afoul of the mad doctor.—Andrew Backhouse (andback74)