Known as the "smiling tiger" and "Mao Junshi", the secret of being an official is patience, waiting and being cruel. In order to climb up, he became the immediate superior and the slave of Chiang Kai-shek, but he was extremely cruel to the people and the people. On the eve of national liberation, it created the Zhazidong tragedy in Chongqing that shocked the whole country, created the 1999 Kunming White Terror, and planned the bloody assassination of patriotic general Yang Jie in Hong Kong. Mao Renfeng, director of the Secret Service Bureau, revealed the insidious ferocity of this veteran spy chief, and also revealed the darkness before dawn in New China from one side.