The amnesiac girl killer Yue Yao (played by Lin Siyi), at the age of sixteen, finally ushered in his first killing mission. Yue Yao was ordered by her master to assassinate the "ruthless" 14th Yamen general He Yunxing (played by Li Junchen). Yue Yao failed to infiltrate the general's mansion and assassinate, and was designed by Heyunxing to be the bride he just married! In order to complete the assassination mission, Yue Yao had to play the role of the daughter-in-law of Heyun Xing, and soon a series of murders occurred in the general's mansion, Yue Yao became the first suspect in the murder, stimulated by the bloody murder, Yue Yao gradually began to recover her lost memory, but at this time she didn't know that she had been involved in a shocking conspiracy.........