D: Chung-Hyun Lee.
S: Park Shin-Hye, Jong-seo Jun, Sung-ryung Kim, El Lee, Park Ho-San.
It is so rare when a movie pulls the rug from under an audience, here in terms of tone and genre. Starts off as a naff time travel flick with a generic title, but evolves into a tense serial killer movie. A cross between FREQUENCY and LOOPER.