In 1945, it is near the end of the Anti Japanese War, China, Japan and the three party struggle is becoming increasingly fierce, calm sea undercurrent. The juntong spy Li Haifeng Nanjing to join the puppet regime, military intelligence member Yu Zecheng (Honglei Sun) was ordered to Nanjing to assassinate a traitor, but the accident on a path. The instigation, Yu Zecheng to return to the identity of an underground juntong, become a rivet into the heart of the kuomintang. In order to assist more than work, Party organizations sent hot tempered and outspoken girl Cui Ping (Chen Yao ornaments) as more than a counterfeit lady. With the passage of time, the struggle intensified, the couple also faces a major test of life...... The film according to the writer of Tianjin Dragon (Li Peng) with a short story, and won the fifteenth Shanghai TV Festival Magnolia Award Drama Award for best actor (Honglei Sun), the twenty-seventh flying Award for outstanding actor award, 2010 twenty-fifth China China Golden Eagle TV audience favorite actress (Chen Yao).

1945年，正是抗日战争接近尾声之际，国、共、日三方的角力日趋激烈，平静的海面下暗流涌动。由于军统特务李海丰投靠南京汪伪政权，军统情报处成员余则成（孙红雷 饰）受命前往南京刺杀叛徒，却意外走上了另一条道路。经中共策反，余则成以地下党的身份重返军统，成为扎入国民党心脏的一颗铆钉。为了协助余的工作，党组织派出脾气火爆、口无遮拦的女孩翠平（姚晨 饰）担任余的冒牌夫人。随着时间的推移，国共的斗争愈加强烈，这对夫妇也面临着人生重大的考验…… 　　本片根据天津作家龙一（本名李鹏）的同名短篇小说改编，并荣获第15届上海电视节“白玉兰奖”电视剧最佳男演员奖（孙红雷）、第27届飞天奖优秀男演员奖、2010年第25届中国电视金鹰奖观众喜爱的女演员奖（姚晨）。

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