1st: there are two completely different halves in this movie. The first is more of a survival, with all the moves you’ve seen before and the other goes revenge style, again, with the most common behavior possible.
2nd: the first part is really boring, I was just sitting there waiting for something to happen. I even began to question if this is a horror movie or not.
4th: unnecessary torture. Whenever a movie fails to deliver some horror parts it goes the torture porn direction and tries to get away. Enough with this already.
In the end, tho I can understand people that cheer for Curve, I got to say I seriously disliked it. Annoyed that I found this little movie.