19. Guinea Pig 3: He Never Dies (1986)
This is quite a funny film in a very dark and sick way, but the premise of the movie is utterly repellant. By Guinea Pig 3, the people behind the series had abandoned pure torture Porn (Flower of Flesh and Blood) for horrible films with a semblance of plot. He Never Dies deals with a man who cuts himself but feels no pain. He experiments on himself in more and more disgusting ways and invites a co worker to his house, purely to frighten the crap out of him. The film also has a plot arc where the painless man is driven to initiate all of these mutilations because he has been spurned by a woman. The man mutilates his body to the max and we are treated to scenes of dangling intestines, evisceration of a bladder, and the man decapitating himself and remaining as a live, talking head on his kitchen table. Thankfully the tone of the film is lighter and more sardonic than Flowers of Flesh and Blood but it is still one of those extreme Japanese movie curios that will appeal to the very small immoral minority among us.