From Beyond

Gordon--whose debut, RE-ANIMATOR, was the sleeper horror hit of 1985--returned again to the fever-dreamlike stories of Lovecraft for his source in FROM BEYOND. Doctor Sorel and his assistant, Combs, construct a machine designed to resonate the vestigial "third-eye," the pineal gland, expanding sense experience and causing sexual excitation as every sense response is heightened. Sorel is obsessed with the notion that five senses simply aren't "enough," and he gives himself to the creatures revealed by the machine, becoming a hideous monster that can change his shape at will. Combs is arrested for the murder of Sorel but manages to persuade a psychiatrist (Crampton) ...