Dr.Jekylls.Dungeon.of.Death.1979.

Underneath all the cheese and tacky sets there is a deeply disturbing aspect. James Mathers, who wrote the film as well as starring as Dr. Jekyll, plays a really juicy role where he gets to indulge in all sorts of viciously dramatic sadism. He is an incestuous rapist who stabs his sister with an ice pick and pours boiling water on her because she "makes him want her" like his mother did. He keeps a blond chained up and sexually molests her until she screams, at which point he has an orgasm. He then beats his braindead black servant viciously when he thinks he was trying to "soil" his beautiful blond girlfriend. All the while he's leaping around, clasping his hands and giggling. I just can't help thinking that a man who wrote this specifically to act it out must have some serious issues. And YOU get to watch them!