"Cello" is one of the best Korean horror movies I have seen! It sure is very creepy! And it certainly has enough scary scenes to keep you satisfied! The brilliance of this movie is that you don't exactly know when something is going to happen! In most horror movies you can anticipate and predict a scene! Although some scenes seem similar to other Asian horror movies and you think you know what is going to happen the scene goes into another direction! And then out of nowhere something happens! It takes a while to fully comprehend the plot! But once you do you will be surprised even more! Twist after twist and it never seems to end! "Cello" won't be for everyone,since the pace is quite slow and there aren't that many scares compared to other similar horror movies! Personally I didn't mind much because overall the movie is very entertaining and it's conclusion very rewarding!