'A Christmas Carol' is a story about a twin brother who goes to a juvenile detention center on his own to avenge the death of his twin brother. It's not Christmas-themed, more about an incident that happen during Christmas time. It's an intense movie filled with very VERY painful scenes, I felt a slow-burn suspense consistently. It looks very dark and gritty, a lot of beating and cursing so trigger warning. The flashbacks scenes are not confusing and it flows well with the plot. It's not just a movie about a crime investigation, it is also asking about whom and what do you take for granted in your life, how important revenge is and how far can you go.

By the climax, I got so angry and sad. It's a very unsettling reveal, so proceed with caution... it’s not a movie that leaves you feeling okay. For this reason, I won't recommend this to all, unless you want to see Jin Young's amazing acting nuance, at the same time ruining your inner child's fantasy on Santa Claus...

Though it’s great that I felt really emotional throughout, I had to suspend my disbelief for the real cause and execution of the main incident. It explains the meaning of foreshadowing scenes leading up to this climax, but I expect this particular scene could have been written better or more realistic. Nevertheless, I think this is a great movie because it manages to grabbed my heart and ruined it to pieces. I will need some time to heal and by re-watching Jin Young's other works. Hats off to you, Park Jin Young, I respect you very much!