Great concept and really well done, using almost only sounds

Rating: 9/10 (3 October 2018)

It is a great movie. It is done in a very intelligent way. It's not like the most of the films now-a-days, that just slap you with the truth and what's happening at your the face right at the beginning; it actually doesn't tell you almost anything and leaves that whole mistery in the air, which in a way only results in an eerie ambience, since you don't know a single thing about these human-eating monsters.
The acting is really good despite only having a total of 2 minutes of dialogue and it gets you stuck to the chair with the crazy amount of tension, of suspense of the scenes and the characters.
Fair amount of good jump scares and the sound effects are just beyond comparison to anything else. It is true that has a lot of bad choices made by the characters, but it wouldn't be a horror movie without that, would it? Not to mention that half the main cast are kids.
Above all, it dives right into this post-apocalyptic environment and with some action that just develops later in the movie. I recommend watching, and especially while wearing headphones.
(Also... it is not as easy as you think to live in a waterfall :) )