Makes you think and look for answers, it is a more mature version of the old classic story, and I like the element of mystery and how darkness was used throughout the journey (metaphorical and actual) - I saw this movie in a completely empty theatre - by myself - and what an incredible experience that was, the creepiness and sound effects made me feel like there was someone just behind my shoulder at all times, just like there were shadows lurking in the corners of each scene.