Xu Xiao learns who tried to assassinate his wife and sends word to Feng Nian to help investigate. Zhao Kai tries to plant the book that will make Feng Nian insane in his residence but is stopped by Miss He He. Lu Bai Jie learns of Jiang Ni and Yu You Wei’s origins, so he works with Liu Li Ting’s widow to draw them out. Feng Nian discovers his sister’s ailment and confides in Jiang Ni. (Source: frankly at MyDramaList)