PhD candidate Jung-gu is struggling to get a job. Because he made an improvised explosive device when he was at high school and was sent to a juvenile detention center, which remains as a label attached to him. He still secretly makes improvised explosive devices and randomly sends them to people, hoping they will be blown up, but people just ignore them. Jung-gu spots querulous university student, Hyo-min, and sends him an improvised device, which brings them close. Rage becomes poison to a man for whom the way vent fury is eradicated at early age, and this accumulated rage eventually encroaches on his nature. Tinker Ticker shows the changing emotions of the main character intriguingly through the intuitive subject matter, explosives, and skillfully expresses the changing nature of the character, appropriate to the title. Some stray dogs that give up on their wild nature try to adapt to life with humans, and others don’t. The survival story of a stray dog in the chaos under human rule is lonely and pathetic. (Martin LEE)