《哥哥》电影讲述了已经分离15年的两兄弟在不得已共同生活后所发生的故事。曹政奭在片中饰演没有廉耻之心的哥哥斗植，因诈骗罪服役中的他以国家级柔道选手弟弟为借口获得了假释，而都暻秀则饰演本来是成绩优异的柔道选手，却在国家代表选拔赛前因事故导致人生产生了翻天覆地变化的弟弟。朴信惠将饰演对都暻秀像亲姐姐一样珍惜给予疼爱，与突然出现的曺政奭争吵不休的角色 。Doo-Sik (Jo Jung-suk) gets paroled from prison thanks to his younger brother (Do Kyung-Soo) Doo-Young. Doo-Young is a promising judo athlete. After 15 years, Doo-Sik (Jo Jung-suk) suddenly appears in front of Doo-Young and they begin to live together. Doo-Young becomes involved in an accident before the selection for the national team.