Brain Dead

In the movie "Brain Dead" (1990), a young doctor discovers that a dangerous parasite is turning the hospital's patients into homicidal maniacs. As she tries to prevent the infection from spreading, she faces resistance from the hospital staff and must find a way to stop the parasite before it's too late. The film blends elements of horror and science fiction as the doctor fights to contain the outbreak and save herself and others from a gruesome fate.