Extremely overrated movie.
The plot had great potential, but the crew has miserably failed in bringing it to perfection, at least to make it convincing. Most of the murders are pretty obvious and predictable. Nothing extraordinary or mind blowing happens throughout the movie, and the whole story would've been better narrated in a 30 minute solid short film.
Neither the acting nor the making is that commendable. Definitely not a movie that's to be called a classic.
The film can't scare you in anyway if you watch a number of movies of the horror genre, but good for a one time watch.