Something happened in the mausoleum, and the secret case was reborn. The female official Zimo was involved in a puzzle because of a piece of memorial paper, and Liu Chengze left her like a cliff, and her relationship was suddenly cut off like falling into an abyss. The imperial guard Xiao Ling was ordered to investigate the case. The handwriting, the smell of wine, the inscriptions and the past events were all hidden, and her fate was intertwined. The night town is filled with fog, and the truth and love are shocking every step of the way. Between machinations and crises, can she find her own light from the pain of broken love and conspiracy?