The problem with this film is that everything that these characters should not do, they do. Now, THERE ARE GOING TO BE PLENTY OF SPOILERS HERE SO IF YOU REALLY DON'T WANT TO KNOW ANYTHING FURTHER BECAUSE YOU ACTUALLY PLAN ON WATCHING THE FILM, THEN DO NOT READ ANY FURTHER.
First, you are being hunted in the house, you have a shotgun that can blow a hole through an elephant, and you are in a room that has one way in and one way out. You are safe. All you have to do is wait it out or the both of you leave the house together with the safety of the shotgun. Or of course the alternative is to separate and one person stays behind without the shotgun, the other goes to a barn to find a two way radio. The last thing sane people do is separate. If I was being hunted in my cottage with my wife by my side, the last thing I would do is let her stay behind while I go find a radio. She would be by my side all the time.
The best friend comes over at about 4 in the morning. He sees his buddies car bashed up. He sees the door with axe marks in it. He can see that something isn't quite right. Then has something smash his window. What should he do? Before entering the house, he should call the police and report suspicious behavior. But no, of course not, he enters the house with the loud playing music and doesn't call his friends name, or turn the music off, he of course walks silently into the open doorway and gets shot in the face by his best friend.
The classic case of not believing your girlfriend when she tells you that someone has been in the house. "No sweetie, you just imagined that you saw someone and you must of dropped your cell into the fire." Sure that happens all the time.
Every one of these characters deserved to die. They were stupid, unrealistic and completely clichéd in the worst possible way. And for the makers of the film to pretend this is based on true events is ever so manipulative. I read the supposed case this is based on and saying this is based on a true story is like saying Rambo is a love story. It's just plain wrong.
The Strangers is one of the most incompetent films I have ever seen. There is no suspense, no thrills, no chills. There could of been, but you lose all feelings of remorse or sense of caring for the main characters because the screenplay betrays them so much.
1/10 Truly, truly horrible film.