The script of this movie never shows why or how a seemingly decent, almost boring small-town cop is transformed into a scheming bad-ass who plans not only murder, but to pin the blame for it on a fellow officer. Love is just not enough, especially when the object of it, Camelia Kath, is so woefully lacking in the femme fatale department. Then there is Keifer, who is excellent, except we don't get to see much of him. A lot could have been done with this character, but instead we get large dollops of the poisonous relationship between two quite unattractive people (Kath and her nasty, clichéd, property tycoon husband). Hitchcock could probably have pulled off a denouement in sand dunes on an overcast day but probably not many others could. However, I thoroughly enjoyed Joe Don Baker's performance as the old sheriff.