Stacy Keach plays Lou Ford, a deputy sheriff whose brutal childhood experiences have left him emotionally warped. Ford is prized by his community for his no-mercy treatment of criminals. But the danger that he will snap and begin killing indiscriminately is ever-present. Based on the novel by Jim Thompson, in this adaptation Ford's psychotic breaks are signalled by lightning flashes. Director Burt Kennedy handles his material in the manner of his earlier Welcome to Hard Times: nothing is quite of this earth, and everything is painted in broad, violent morality-play strokes. Despite Kennedy's predilection for "cutting in the camera" (that is, filming each scene with only one or two different camera angles, so that his directorial vision will survive the editing room), Killer Inside Me gives evidence of having been severely tampered with in the post-production process.
by Hal Erickson synopsis