月光洒下，幽静夜晚，心与自然共鸣。特推官网

　　A high ranking executive defector from North Korea was killed abroad and South Korea sends out an alert for the safety of the North Korean defectors. 　　Detective Kim, who is responsible for keeping the identities of the defectors safe, can’t find Ryoo Soo-hyeon who has been out of reach for a month. 　　Ryoo Soo-hyeon was working part time in a library. One day, he received a letter ... (展开全部)