Based on personal opinion. The main actors and actresses was nailed it in portraying their character but such a pity because i feel like the story is lack something so there's some plot hole here and there. The ending is disappointed for me and it kinda makes me angry and i feel like i just wasted my 2 hour, it's quite unclear for me about the ending. Some part i feel i know it before it happened so yeah, i mean it's quite expected.
The character:
i would give it 9/10 for Ryu Jun Yeol for potraying his character, it makes him the center of this movie, i can feel his emotion through the entire movie.
Jo Jong Suk was nailed it too so i'd like to give him 8.9/10, in this movie he impressed me how for portraying his character because he's a jerk here and yeah it makes me hate him because he's ruthless and crazy af.
Gong Hyo Jin was good, imma give her 8.5/10. She's the main character but it feels like these two above are the center from this movie. I mean she's good and badass but i don't know why i feel like her character can be more than this.