Criminally Insane is the perfect example of a 70's flick - a plot that should be funny being done in deadly serious tone, a short and digestible run-time, and the perfect grindhouse drive-in feel. Given it's just over an hour, I'd recommend checking out this film, because if nothing else, I think you could agree it's certainly amusing in many ways.
What do you think about this cult classic?
(http://fight-evil.com/movies/years/1975/277-2.jpg)
I love this plot.