First of all, there is such thing as too much music in movie. The background music is overdone, it's distracting and overbearing. Horror movie should not make you feel like there is an orchestra playing somewhere while main character is going into dark basement. Overbearing, loud and really annoying music will not make any moment more tense or more emotional, it will be just: annoying. I don't want to hear bloody orchestra playing in what's supposed to be tense moment when main character is in some dire situation. I don't want overbearing "sad" music when he has a flashback, it's just too much!
Second, the characters' reactions are so unbelievable and unrealistic it's ridiculous, it's not even funny. Who says "wtf" when sees an intruder in his rented cabin and just goes to sleep? And his conversations to himself are super cringe and such bad acting. Michael Madsen and Lacey Chabert are completely under-used and get 5 minutes onscreen while this other actor gets all the time, don't know his name but he is not really good, sorry. His reactions are unrealistic, his love story does not have any realistic feelings no matter how much orchestra in background is trying to play "sad" music, his behavior is totally out of place and unbelievable.
Third, there is no story. What happened? No explanation. Nothing makes sense. No resolution. This is so bad, I have no words.