good horror movie

Rating: 7/10 (12 June 2017)

I have read the many reviews this complains about the problems of logic and science. I really think the film should not be classified in sci-fi then horror but horror. In the comments I thought I heard the sketch of Bigard on the horror movies: "they are not logical to make 2 groups of 2, at the supermarket yes but not when a psychopath is in the house." In short the story is average but it's scary, jump, turn in disgust ...
I got screwed up because I thought I saw a good sf movie (as I like) and I come across a horror movie. I do not like all that kind of movie, but I always watch until the end a movie that I started, especially if I allow myself to put a note. And I must say that from a horror point of view the mission is successful. That 's why I put 7.
Sorry for my English, i'm a french guy...