Akuma no niwa

Confined to a mental hospital, young Kirsty Cotton insists her supposedly dead father is stuck in hell, controlled by sadomasochistic demons after being betrayed by his evil, occult-obsessed wife, Julia. Few believe Kirsty, except the thrill-seeking Dr. Channard, who is intrigued by the young woman's lurid stories. So when Kirsty and fellow patient Tiffany head to hell for a rescue, Channard and Julia are close behind.

After Malukan immigrants engage in a string of corpse mutilations at various New York City hospitals, a doctor and a morgue assistant travel to the Maluku Islands to investigate.

A mad doctor uses a fake taxi driver to kidnap victims and then removes their eyes in hopes of perfecting an eye transplant that will allow his blind wife to see again. One of the doctor's servants ends up getting possessed by not one, but several of the victims.

An obsessed scientist conducts profane experiments in evolution, eventually establishing himself as the self-styled demigod to a race of mutated, half-human abominations.

Tampering with life and death, Henry Frankenstein pieces together salvaged body parts to bring a human monster to life; the mad scientist's dreams are shattered by his creation's violent rage as the monster awakens to a world in which he is unwelcome.

Stefan learns that his invalid grandmother was the nurse/lover of Nazi doctor Franz Kindler and that she removed his brain when the Nazis were losing WW2. Unable to successfully perform a transplant on test subjects, she needs Stefan to carry on for her now that her health is failing.

A plastic surgeon goes mad when he discovers that his wife have an affair. He fakes her death and disfigure her and locks her in the cellar.

After having a feud with director Kenneth J. Hall, producer Fred Olen Ray hired Ted Newsom to shoot brand new footage (on video) to weave in with scenes from Hall's film Evil Spawn (1987).

Bondini is a mad doctor who is creating an army of Zombie Cannibals and trying to give birth to the first zombie baby

Professor Frankenstein creates a teenager from an accident victim, who gets angry when he learns he is going to be taken apart.

A mad scientist creates a monster called "Mosaico," who breaks out of the laboratory to hunt down and kill beautiful women.