Name some good movies like...?

Bad Ronald is a real good one from 1974. Motel Hell, there are some newer remakes. I'm thing thinking of the one in the 70's or early 80's. This wacko buries people up to their neck feeds them well then uses a tractor to harvest their skulls. Gacy (sick) the story of John Wayne Gacy. Ransom w/Mel Gibson is cool Army of Darkness.