"모정의비밀은사랑의깊이에따라달라진다,그깊이를알아가자."两个人一前一后进行攻击

　　While trying to escape from North Korea during the division of the Korean Peninsula, a woman is captured by northern soldiers and seperated from her family. They train her as a spy using the threat of harm to her son as leverage. She is unaware that her son actually made it safely into the south.