Roughie but it certainly doesn't fit into that genre. For some reason The Thrill Killers always reminds me more of movies like The Sadist (1963) with the great Arch Hall Junior.
However as I mentioned before this one plays more like The Sadist. We have three escaped mental patients who are running around with axes, guns and knives, chopping the heads off of helpless victims. In one of my favorite scenes we see one of our escaped lunatics picking pieces of scalp off the blade of his axe and he says "Poor Jack, He had dandruff". This is a perfect example of the dark and yet humorous tone that runs throughout The Thrill Killers.
We also get a police massacre, a dead cowboy, death by poisoned coffee, a motorcycle and horse chase scene complete with shoot out and a murder. Throw in the decapitations and a dive off a cliff and we have one hell of a entertaining exploitation flick.
Those who are familiar with Ray Dennis Stecklers films rightfully might be worried. After all the man was responsible for such stinkers as The Incredibly Strange Creatures Who Stopped Living and Became Mixed-Up Zombies!!? (1964) and Rat Pfink and Boo Boo (1966) but The Thrill Killers is by far the best of his films that I have seen. Its up in the ranks of greats like David Friedman and some of Russ Myer's more violent work like Motor Psycho and Faster Pussy Cat, Kill! Kill!