Smart & capable heroine, inconsistent villain. Still worth watching.
I liked the female lead and her mother. They were smart and not 'victims' - except for the whole stalked-by-a-serial-killer thing. (Other people have mentioned that this movie, in a way, touches on the way that Korean society diminishes people with handicaps.) The way she chose to beat the bad guy was wonderful. I found that the antagonist was inconsistent. You can't have your villain be unstoppable but he made choices that seemed to be too impulsive where up to that point he had been smart and under control. (On a personal note as a viewer - The director showed the fit villain running close behind the heroine. She runs around a corner and suddenly has plenty of time to find a place to hide. This was done more than once. Always annoying.)