Barbarian did manage to keep my attention all the way through, even with the random switches to different plots for character building. It's very good at being scary and creating suspense, but at times was questionable. First off, either all the characters are stupid, or all happened to go on day long streaks of bad decision making. Sure, it's good for moving the movie forward, but was not realistic. I'm sure anyone with more than one brain cell would not end up in this situation.
Also, the creepy basement nude lady was really mysterious, and I don't get how she was so strong. She casually ripped a mans arm off, survived an insanely long fall, and ran so fast, which to me made zero sense. She was very off putting, and so was the old man. I feel like we could've either went without his little side plot or had it told in a way different manner.
Good movie to watch if you like creepy basements and just want something to gross you out for an hour and a half.