Not every movie has to be revolutionary. What really matters is how well it's done!

PROS:
+ Outstanding use of lights/shadows and darkness in the cinematography - Impressive camera shots, paired with a good, ambient score give the film a mature and classy feel
+ Interesting story with a protagonist that conveys empathy for the involved situations
+ The setting for most of the film is very well done, giving it a haunted and desolate feeling of helplessness

CONS:
- A couple of cliché character archetypes are present, but they work fine nonetheless
- At one point, the plot beings to add layers, but it felt as if it were missing some details

This movie reminded me a lot of another called Blind. There weren't as many surprises, but the movie was well done and is a strong thriller that succeeds in being unsettling. I definitely would recommend it!