Tinker Ticker

Park Junggu sends out homemade bombs to people he finds online who are likely to use them yet these devices are unused One day Junggu meets Lee Hyomin a delinquent student at his university and sends him a package Soon an explosion in a delivery truck hits the news Before long Hyomin discovers who is sending him the packages and the two form a tenuous relationship However Hyomins unpredictable behavior becomes dangerous and Junggu finds himself caught in a situation that he can no longer handle