Rating:8/10
This is a movie that really suprised me.  I wasn't expecting too much from this and I got a whole lot more.  The movie starts off kind of slowly, but it really builds up and by the end, wow.  There were some pretty creepy scenes and the atmosphere for this was really dark natured.  You could feel the tension.  It also helps if you turn the sound up for this one, as that really helps build the tension.  The soundtrack and the noises fit right into place as if it were a puzzle.  I did enjoy the story to this as well.  The director Nacho Cerda got the most out of the to no name actors, who did quite a good job.  Cerda also dopens't pull any puches as you will remember some of the scenes for quite some time.  You are just not sure if he is aiming for your brain or for your stomach.  This puts those other supernatural thrillers to shame that is for sure.  Skip The Ring, The Grudge, White Noise and Pulse.  Go after this one.  It has the tenson and the atmosphere that those were lacking.  There hasn't been a good supernatural thriller for quite some time.  Maybe Dark Water, but otherwise, this could be the one you are looking for.