Guinea Pig 4: Devil Woman Doctor (1986)

Composed of bizarre, grotesque, and exotic medical experiments, the successful career of the unconventional Devil Woman Doctor is soaked in blood. Only the most absurd, abnormal, and strange cases intrigue her, such as the rare case of the "exploding head" family; the equally volatile situation of the detonating heart; or the difficult tattoo removal incident, and the unprecedented love story of the rotting revenant. Who's next? The doctor will see you now.