The entire tone of this movie is eerie and have an interesting plot, all set up to be something great. But the dumb decisions the characters make (i.e. the writers way of setting up progress) takes you out of the horror. Some examples: 1. The murderer do a terrible job of captivating his victims. Liz is kept tied on a floor in a shed with a window, full of glass and tools. Easy escape. Mick is crucified in an open area with loose(!) steel wires and with the nails penetrating from behind(!) for some strange reason. Easy escape. 2. When the killer is passed out on the floor, Liz hits him on his back(!) with the stock of a shotgun a couple of times. Not checking if he's dead and not killing him, which any sane person would've done to save their lives. 3. When Liz returns to the killers camp, she starts looking through videotapes for no real reason (just to force some history of the murderer? And that he's been following them?), knowing that the killer could come back anytime.

I imaging as a writer of movies - especially horror movies - you have to cover all bases to minimize character stupidity and obvious plot holes. But in this movie's case, it felt just too dumb, just to set up progress.