- Warning- tiny SPOILERS -
I've already seen movies with this kind of "loop" idea but this one is somehow refreshing within its little sub-genre of psychlogical and psychedelic horror. There are a few really original and creepy scenes (like the accumulated bodies of one of the characters - a stroke of genius in my opinion) and it is worth watching even because of those. If u like experimental and very pessimistic kind of semi- horror then I highly recommend it.
Enjoy!