Oh Tae-kyung, once a promising child actor (the young Oh Dae-su in Oldboy), starts a YouTube channel where he promises to solve his subscribers' problems. When a user offers a reward for the backstory of a mute young man holding a sign that reads "I haven't done anything", the channel goes viral - and things get out of hand. A Korean found footage comedy told through online videos, from a co-writer of Gonjiam: Haunted Asylum.