The movie is a captivating suspense film, notable for its excellent acting—particularly Kim Sung-oh’s portrayal of a frighteningly believable villain—and an engaging story that keeps you guessing. Though some aspects like how characters age and the depiction of police work don't quite ring true, the level of excitement and surprising moments surpasses what I anticipated. It serves as a potent reminder to avoid making assumptions about people based on their outward appearance and underscores the significance of honesty when pursuing fairness.

Source on TMDB