Watched a third time and it gets better and better each time. intellectual dialogue along with fun comedic iteractions with the two main characters. The villain character is very interesting and keeps you on your toes. Ha Ru character is complex and he portrayed it very well. Love the intense anger and pain he emitted in his acting. The best part is his intellectual brain. He delivered the lines so perfectly. I throughly enjoyed the explanation on how the brain works. Smart script with funny scenes. A perfect drama. I would watch it again and again.