Most directors have a goal in mind when they make their movie, and if the movie does what it should in terms of entertainment, then we call that movie a success.
Unfortunately for this film, the director makes the mistake of trying to disturb you and terrify you with graphic scenes of torture and gore.
Ho hum. It's been done before, and many times even better than this.
Disturbing the viewer is a good goal in a horror flick. But extended scenes about torture and gore bore-me-half-to-death. When I can flip forward through entire scenes and be like, "Ok, so long story short, she dies this way, he dies that way, killer does this, killer does that.." and get the entire story without actually needing to watch it, then we have a very shallow idea on the screen indeed. I can literally skip entire scenes and miss nothing, and the rest of the movie still makes perfect sense. In other words, there is no point to this movie except extended scenes of suffering and gore. You may skip them or watch them at your discretion, but why bother watching them when they really add nothing? It's really just more gratuitous than effective, and if you are the sort of person who actually enjoys watching it then I suggest you get your head checked.