A MUST film for everyone in my opinion. This film is great in the the triller genre, because until the very end you agonized if that man is Da Eun dad or not that killed the boy. The film show step by step how Da Eun is striving to learn the truth and how is going to react if her dad is indeed the killer. The story is advancing normally but it's has a lot of changes that it'll never cross your minds. Until the end you don't know whether the killer is him or not by the way he is acting. All the unanswered questions that you having throught out the movie are being answered at the end and why all that things occured. Watching this movie I understand that if you ever done a misdeed in the end, it doesn't matter how many years have been past, you are punished for what you've done. I am gonna rewatch it again and again.