Good movie. This movie is one type of film that makes you have to think, even after the movie has long ended. Although this movie runs quite slowly, the story is quite interesting, because there are many mysteries that must be solved and also some pieces of the story that we have to find the connection. There are no twisted plots, but the ending of the story is difficult to guess (at least for me). But after the movie has long ended, I still wonder what is the drug that being injected to all the victim? What is the motive? Too bad they never reveal it.