Kang-sik, who is sentenced to a lifetime imprisonment, leads an empty life of hopelessness. One day, something miraculous happens: He is granted a single day to leave, to see his son that he has not seen for 15 years. Now as he prepares himself to meet his son for one day, the feeling of elation and joy overfills his heart. At the same time, he is overwhelmed with anxiety and fear.
—CJ Entertainment