The movie has an interesting premise and I was excited to give it a try. From the beginning, the story was executed very smoothly and with great mirror/reflection sequences to show what the main character currently looked like. It was really cool to see those reflections used so creatively without any problems. As you watch through the movie, you will slowly piece together the entire story at what I thought was a relatively good pace. However, there were some moments where it felt a bit slow and some unclear parts about the plot that were left unanswered. Also, there are many great fight sequences in the movie which were fun to watch. The cast was also amazing, especially Yoon Kyesang, who pulled off the action scenes and body switches really well. I would recommend this to anyone who enjoys a great action movie.