South Korea consistently delivers impressive crime action thrillers, and "I, the Executioner" continues that trend. The movie centers on a serial killer whose connection to an experienced detective and his unit creates a tense situation. This sets up a briskly moving, inventive series of action sequences; while not groundbreaking in concept, it provides a pleasant viewing experience. A notable aspect—something often seen in South Korean films and television shows—is the grounded and believable way characters are depicted. The main detective comes across as an authentic individual, grappling with typical work-related pressures alongside the responsibilities and worries of family life. Ultimately, this is a very enjoyable crime action thriller coming out of South Korea, and it's definitely worth checking out.

Source on TMDB