This movie is a must see for those who like Psychological dramas. The complicated plot makes you think about things and see this aspect of the Korean school system in a different way. There were many times where my heart was racing during this movie. Although it is not a thriller, some parts may surprise you and make you jump. An interesting aspect of Pluto is its connection with Pluto. The reason why it is titled so is very interesting, though it only seemed to intertwine with the plot in the beginning and the end. The cast seemed to fit well with the characters and the acting was extremely convincing. I am glad that I watched this and would definitely watch it again.