Be a troll, and the world will subscribe your channel. Oh Tae Kyung, once an up-and-coming actor, starts a YouTube channel as a breakthrough. He starts to produce contents where he grants people's wishes, borrowing the concept of a movie "Old Boy". One day, with a great deal of money, a subscriber asks him to find out the story of a man standing alone with a picket saying "I HAVEN'T DONE ANYTHING". However, the guy remains in endless silence and when Oh Tae Kyung is about to give up, he comes across the picket guy's sister and she tells him what had happened. As he goes closer to the truth, the excitement of finding a behind story turns out to a shocking twist.