I really enjoyed this movie, definetley not a waste of your time. It has a good written story, there are somewhat similar movies like this one. I really liked it that it had loads of twists and turns in them; I didn't see all of them coming. I really liked the little hints of comedy it is acceptable in this movie. They kept me on my toes and I got really curious about this card game (this is unknown in the EU). I didn't understand the card game but the movie makes you understand it, and after watching this you might get interested in the Go-Stop card game. The acting was great. Yes, I am a tiny bit biased but besides TOP the rest also really stood out, there was one weak character and for me it was Shin Se Kyung, I just can't figure out if it was the role or her acting. The music made the movie, but one song didn't fit the scene in my opinion so thats the reason why I rated is quite low. Watch this if you like TOP (yes there will be abs, and he did act quite good), gambling, twists and turns and like the card game Go-Stop. Skip this if you don't like TOP, bloody scenes and gambling movies.