From the winter of the ninth year of Yuanhe (AD 814) to the autumn of the tenth year of Yuanhe (AD 815) of Emperor Xianzong of the Tang Dynasty, a series of secret room murders in Chang'an were used as a guide to uncover the secrets left over from the Anshi Rebellion that spanned 30 years and the deep secrets of the failure of the Yongzhen Reform. The life and death game between the three major forces of the feudal town, the eunuchs, and the court was connected in series, and the shocking conspiracy to assassinate the prime minister was finally uncovered.
