Wanna find a mystery drama with good acting cast, here you are. This drama really gives off a mystery and horror vibes, when I started it I was kinda of creeped out firstly because oo its plot but also maybe it's because I was watching it in the middle of the night (3am. ps better not watch it in the middle of the night). The plot was good but the ending I really didn't liked that much. The acting was really good especially the main character (that's the reason I came to watch this drama). Kim So-Hyun's (the main female character) acting was great and she looked so cute with Lee Min Hyuk (the guy who is always with her in the drama), they made an adorable couple, I really like when he calls her his wife and himself husband. I also love the fact that they the only ones who were aware that people were dissapearing from their class. But in the ending there's something weird concerning the guy but never mind. The music was okay, well I didn't listen to it mostly and I didn't care, the songs were not so evident. So at the end should you watch it? Well if you are trying to find a drama giving a mystery and horror vibes drama. Hope I was helpful in some ways. : )