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The story of Lee Tae-shik, a former anti-terrorist unit who worked as a secret agent for the National Intelligence Service, struggling to find his wife Ri Seon-hee, a North Korean defector who went missing on their first anniversary of marriage.
 
                    



 
                                     
                                     
                                     
                                     
                                     
                                     
                                     
                                     
                                     
                                     
                                    