In the Tang Dynasty there existed a special institution - the Undesirables (Bu Liang Ren) - who served as magistrates but were criminals. A case of a dwarf puppet master manipulating a parasite to kill a man leads Pei Mou, the undesirable marshal, and others into a maze of dilemmas.

Years of war have plunged the population into poverty, and the Céline faction is forced to return to looting graves to get money for food for those in need. Jiang Yu, along with his uncle and a group of scientists, goes to another grave, unaware of how many dangers await them.