Two guys are having a big Baduk (Korean checkers) match. One is a legendary master who came back to the mach after 30 years after hearing about a friend′s death by swallowing 30 Baduk pieces. The other, young top-ranking player Chang-ho, is known as the ′1-Know-All- About-Baduk′ guy. The old master does his best even when bleeding, but this fierceness seems to have little effect on Chang-ho. Baduk is known as a microcosm of human life. However, there is no telling Chang-ho what the life is like when there is no life to miniaturize. With intended thematic heaviness and an exaggerated narrative style, Function of Twins raises the old question of ′what is life?′ (Hong Hyosook)