Review of Play Misty for Me

I recently viewed this movie on TMC, and even allowing for its age, I found too many holes, and some of the plot unbelievable. Up to a point, it was all it was supposed to be: suspenseful, scary, edge of your seat. Then the plot broke down for me: First, she was arrested for murder. She was obviously nuts. Why on earth did they let her out??? There could or should have at least been some explanation. Second, Clint Eastwood's character was too Clint Eastwood. So laid back, even with all the danger, he was still the same, no emotion. One would think, knowing this killer is stalking him, that there would have been some caution, some guard around his house, a little anxiety perhaps???