Youngdo’s father, a notorious serial killer, was executed. Youngdo wants to let go of what he remembers about his father but he doesn’t know how to do so, and he ends up releasing his anger through violence.

多年后终于重逢的一对同卵双胞胎兄弟，却在时机最危险、局势最混乱之际相遇，为了逃出生天，他们不得不互换身分、执行一场惊险计画，一个人必须牺牲，另一个才能存活，他们最终能否平安走向那个被称为「天堂」的地方？