I love this film, but I'm not going to review it. Put simply, if you're reading this page presumably you have some interest in thrillers, or crime dramas, or character studies of the mentally ill criminal types, then you should get it. Competetantly directed, well written black humour laden but intelligent screenplay and one fantastic performance from Mr Terry O'Quinn. He returned for Part 2 and I have to say, I like that one better.
However, in contrast to the other review for this film, I have to mention he did NOT appear in Part 3. And that's why it sucked :)
Oh, and because I'm on Amazon.ca, I will mention - Stepfather was filmed in Canada, Vancouver I believe but I'm not sure, and features many actors besides O'Quinn who would feature in Chris Carter productions. The first one to spring to mind is a man who works for the Police who played the First Elder in The X-Files. X-Files, and Millennium, were both filmed in Vancouver too, you see :)