This is by far the best Korean movie I have ever had the pleasure of watching. It starts off suspenseful, then it gets a little lighthearted, and then it just wraps up in the most disturbing way. So many emotions packed into one 2 hour movie. I will never, ever stop thinking about the ending and how the whole story wrapped out. I don't know what to feel. You'll wish it wasn't true. You'll want to wash your eyes out with soap after learning it. You'll be sad, confused, and bittersweet at the same time. That is the sole reason why the rewatch value is a 8/10. You will never experience the ending the same way as your 1st time around. A fantastic movie, although the plot twists were what made me award this movie a masterpiece. Go watch this movie. You will not regret it!