Sometimes what Katie says doesn't really make sense, like when she says, "They used to treat mental illness with shock therapy." They still do, you moron, just not quite the same way you were doing it (read up on ECT if you feel like being smarter than everyone else about that nightmarishly-portrayed treatment that isn't anything like how it's ever been portrayed in film, and genuinely works and is painless). I was sort of hoping for a different theme to the killings, even a sort-of medieval, religious-history-based one. I was disappointed when she emerged in the Church, began reading the Bible, but then that was the end of the significance of that. Katie (wasn't the first girl called Katie, too?) is a carbon copy of the previous anti-hero, even to the point where, during the revenge part of things, she acts practically the same way, feeding back lines to her captors and such.
Almost identical to the 2010 remake, but with a change of setting and new antagonists. Not bad, but not particularly good, either.
Since I like movies that push the envelope as hard as they can (and I've never been able to see a movie as anything but actors on a screen, so I never get scared or even grossed out-it's always just props and stages to me), movies like these are up my alley. This review contains spoilers, click expand to view.