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A bloodthirsty monster appears in the Five Sacred Residences, tearing apart intruders, and a brother-in-law disappears mysteriously; an official with only ten months left in his sentence escapes from prison; a wealthy woman is brutally murdered; a cruel enemy comes back to life; ancient houses, secret passages, and mandrills, the secrets of a dusty ancient painting are finally slowly revealed by these people with intertwined destinies...

Zhuo An, a former mercenary, opened the "Five Saints" bookstore. His ex-girlfriend, whom he hadn't seen for several years, came to his door and asked him to help him kill someone. After being rejected, he mysteriously jumped off the building and left a note identifying Zhuo An as the murderer. The code hidden at the scene is inextricably related to Zhuo An's father, who has been missing for many years. The huge sum of money in the old house, the life-and-death comrades in Myanmar, the mysterious "Book of Changes", the snipers in the alleys, the traitors in the police force, everything is in the clouds, but the truth is revealed between life and death...