Jinseop, a gloomy man working as an intern at a large company, only has one hobby: stalking Taeyoung, the perfect deputy manager of his team. As Jinseop becomes more and more obsessed, collecting every item that belongs or has been used by Taeyoung, he stumbles across him lobbying the chairman for a promotion. Feeling betrayed by the one he thought was perfect, Jinseop hatches a plan to blackmail him and turn him into his loyal dog…