to her dad’s cell mates and manages to stay for a night, but is inadvertently found by the warden. Eventually, the warden realises that Yong-gu is not the assailant of the girl after Yong-gu saves him from an attempted arson, and allows Ye-sung to visit Yong-gu everyday after school. Before the trial takes place, Yong-gu is trained by the Room 7 inmates on how to answer potential prosecution questions and he becomes proficient in answering them. Unfortunately, the commissioner beats Yong-gu before the trial in a fit of rage, threatening to kill his daughter if he does not confess. Left with no other choice, Yong-gu sacrifices himself by lying that he killed the commissioner's daughter to protect Ye-sung. Yong-gu is then sentenced to death and the execution date is scheduled for December 23, which happens to fall on Ye-sung's birthday. Feeling sorry for Yong-gu, the inmates decide to build a hot air balloon for Yong-gu to escape. During a prison concert, the inmates send Yong-gu and Ye-sung on the balloon while the guards pretend to be overwhelmed, but the balloon's rope is caught by barbed wire. On the day of Yong-gu's execution, the inmates and Yong-gu celebrate Ye-sung's birthday before he is executed. In court 16 years later (in the present), Ye-sung, the prison warden and the Room 7 inmates all attend Yong-gu's trial to prove his innocence. The judge exonerates Yong-gu by overturning the previous verdict and granting him a posthumous acquittal, as well as a court order to re-investigate the girl's death, to the joy of the former Room 7 inmates, the warden, and tearful Ye-sung. The scene then returns to the beginning of the film, where Ye-sung has a vision of Yong-gu and her younger self on the hot air balloon waving goodbye. She tearfully says goodbye to her father as the balloon flies away. Cast Ryu Seung-ryong as Lee Yong-gu Kal So-won as young Lee Ye-sung Park Shin-hye as adult Lee Ye-sung Oh Dal-su as So Yang-ho Jung Jin-young as Jang Min-hwan Park Won-sang as Choi Chun-ho Kim Jung-tae as Kang Man-beom Jung Man-sik as Shin Bong-shik Kim Ki-cheon as Old man Da-do Kang Ye-seo as Choi Ji-yeon (cameo) Box office The film took 4.6 million admissions (the equivalent of more than ) in its first two weeks due to strong word of mouth. Despite the release of The Berlin File, it drew in 15% more