一起贩毒冤案让被告人面临27年牢狱之灾，曾是干探的检控官霍子豪（甄子丹 饰）凭其敏锐触觉和执着，抽丝剥茧展开调查，明面上的口舌之争，暗地里的殊死搏斗一触即发，最终庭审日在即，霍子豪能否击碎不公，极限翻案？
20多岁的Na-young（全度妍 饰）生活工作都十分稳定，但她与母亲的关系不太好，两母女无法亲近。可是父亲的突然离去让他们的家失去了平静。她离开了母亲，到了父亲曾经生活过的小岛，在这个美丽的小岛上，她竟然遇到了一个与自己样子一模一样的少女Yeon-soon。Yeon-soon的快乐与Na-young的失落成为了鲜明的对比。相处下来，Na-young发现了Yeon-soon的真实身份，令她惊讶不已。
Ji-yeon and Do-jin are exhausted from years of IVF treatment. They don't remember what life was like before. She continues to experience the pain of separation from a child she has never met. Do-jin is worried about her health and wants her to quit, but she can't. "Why can't I be a mother?" She won't give up.
