A filmmaker in Seoul, on the trail of a "North Korean Schindler," sees his hero evaporate, forcing him to confront the very power of images. The story revolves around three defectors: Lee Chul-Eun, a former censor who meticulously dissects the propaganda he once upheld; the young truck driver Lee Seungyun, drawn in by K-pop videos and the shiny dreams of muscle cars; and Jung Gwang Il, a concentration camp survivor who sends USB drives full of movies over the border.