This movie is more devastating and shocking than every horror movie i have watched, except for MARTYRS (the original). I don't know if i should recommend it because, make no mistake, as it is unfolding, it's almost unbearable to watch. If you are the type of person that can't stand horrifying movies or else they get nightmares, don't watch it. There are no flesh eating monsters here, there are no masked killers, there is not even violence. Not even depraved/deranged characters. I won't say anything else in order to avoid spoilers.
There is a comedy element indeed here, but it's so dark and bleak that it's gonna make you feel guilty when you feel it. I am not gonna lie, i laughed a few times during the first 30 minutes. However, this is not a dark comedy. This is a psychological drama thriller, anxiety-inducing as a movie can be. As it was getting closer to the end, i literally wished for time to run faster because i couldn't stand it anymore. And i am not that sensitive, i love dark comedy and horror movies, i can watch almost anything.
I gave it a high rating because this is an unforgettable experience. For a guy who has watched thousands of movies, this is a great praise for a movie. This is a well acted and well directed movie that i won't forget soon.