As in the thing you live in - though as the rating suggests here, some may feel that is also true as an adjective about the movie. Horror movies can have it hard. They are succesful but also very open to criticism, especially from hardcore horror fans. This isn't the best horror movie I've ever seen, by a long shot. A bit too much in the jump scare department for my taste. But having said that, technically this is more than sound and the story works too.
The movie starts off with one of those "come on, are you kidding me" scenes. But it has a story behind it and it does tell it quite nicely. Even the reactions from the characters are easy to follow and make overall sense too ... give it a try if you will, and try not to be too judgemental of the flaws. Very nice cinematography too