The movie uses a very well known plot of idiot teens contacting spirit way out of their control. The teens die in pretty horrible ways very fast. However it doesn't feel like the story moves fast because things continuously got worse, but it didn't drag out so long that I lost interest. This movie played on fears I have a lot (I.e sewing of the mouth) so I was freaked out when I almost never get scared of horror movies. If you walk in expecting this movie to revive the near dead horror genre, you may be disappointed, however with its creepy effects and nice plot twists, it does give the horror genre a pulse once more showing its a hard genre to kill. I enjoyed this movie because I didn't expect the world of it, and I didn't realize it was pg- 13 for the longest. It doesn't have to b rated R to be scary.