A solid little mystery with some creepy undertones and a few intense moments, especially the climax. Boyd is a bit stiff (except for one really hammy scene) but Pamela Franklin as the young girl is wonderful. The psychoanalytic elements are handled fairly well. It's not hard to see the ending a mile off, but it's still pretty gripping, and along the way are a couple of insightful observations about man's struggles with his psyche. Some pretty nice dramatic camerawork as well.