Brilliant, clever, well-acted adaptation of Robert Louis Stevenson's great The Strange Case of Dr. Jekyll and Mr. Hyde. Dramatized by Amicus producer Milton Subotsky, I, Monster follows the original tale about as closely as any other with some major deviations. The characters in this film are Dr. Marlowe and Mr. Blake(?). Maybe they wanted to separate themselves from the original source material as much as possible or perhaps had a Rights issue. At any rate, I, Monster is a movie that builds and builds as Dr. Marlowe(Christopher Lee) tinkers with this new serum he has created that eliminates one part of the three parts of the brain(according to Freud). The reaction for each individual is different. For Lee, it sheds his formal, authoritative persona of its superego which then allows him to act any way he wants without any moral, ethical, or logical constraints. Lee's transformation is simple, effective, and strong. He goes from the stiff upper lip to the wicked, lecherous, carefree smile of a man of no moral code whatsoever. His eyes dance from one thing to another as the strangely effective music of Carl Davis plays a tune of light madness. Lee gives a great performance in this one and makes the film work. Without his skills, I, Monster would have little else going for it. Yes, Peter Cushing is in it. He plays Marlowe's attorney and is as always very solid in his otherwise mundane role. The rest of the cast is really nothing to speak of either. I have always liked Amicus and most of their horror entries from the late 60's and the 70's. They have the Hammer look about them without Hammer production values: translated that means that they look like Hammer imitations. Nonetheless, they usually have good stories and frequently paired Cushing and Lee together or singly. Subotsky's screenplay is laced with several philosophical layers. Director Stephen Weeks does a solid job behind the camera. For my money, I, Monster is definitely one of the best screen adaptations of Stevenson's work.
