A teenage girl who appears on a TV show as an idol singer's fan calls herself a ‘seongdeok’ (successful fan), because her idol appeared on the same program. Years later, the same idol singer is arrested on charges of gang rape and illegally filming and distributing sex tapes. The seongdeok, who has suddenly become a criminal’s fan, decides to meet with other fans of the criminal singer in a confused state of anger and sadness.
