I'm not saying that "Mok-gyeok-ja" ("The Witness") is a must-see, but it does does tick off a few boxes that makes it worthwhile. Suspenseful? Check. Twists? Check? Deliciously violent? Check. Good acting and cinematography? Check. What are it's weak points? Mainly character development. The lead guy, the father, is the most spineless, ball-less coward under the sun, but at the end, suddenly grows a pair so large his gonads are the size of basketballs. Completely implausible. The filmmakers tried but the development was just uneven. Still, given the very nice ending, I do recommended this film.