The movie has it's own twist and mystery. It is not gruesome or bloody as what you think it is, most of the time you will just see medical operation which is kinda normal opening the bodies of some patients and slicing them with a scalpel and see some internal organs, which is normal by the way in any medical dramas or movies and I had seen much worse.. The plot is kinda unique, it's more like finding the person behind all the killing. And the thing is, you have 4 different people that you need to choose from and it's interesting but I think it is not really mind blowing after finding everything,it is lacking something especially the ending. Overall the movie is still worth it to watch but not exciting as like some other thriller and crime movies that will really get you hooked on the screen and make your heart and pulse beat faster from the all the suspense.. -So if you want a movie that has mystery and story then this must be the movie for you.