2. Henry - Henry Portrait of a Serial Killer (1986)
A psycho killer to make your blood run cold, the titular Henry is a killing machine, murdering people with impunity. He truly is a monster in human guise. Among Henry's murderous pursuits in the film: he admits to matricide, kills two prostitutes in front of his lackey Otis, killing a man by putting a tv on top of his head, kills an entire family with Otis and also videotapes it, kills Otis and dismembers him and he probably kills Otis' sister too. It is frightening to watch Henry on his murderous spree because his killing is cheap and doesn't ruffle a single one of his metaphorical feathers. Plus he is anonymous - just another drifter slinking through the underbelly of society with little chance of being caught. The casual ease with which he can kill makes Henry a terrifying psycho to watch.