If a man was cut into 7,000 pieces and his body was thrown around, would you be able to solve the case? If a family of three hates each other, the father kills his son, and the mother sacrifices herself to feed her son, what has happened has happened, can you untie the knot between them? If your children and grandchildren have not been home all year round because they are busy, your mother is sick with longing, and your father forces your daughter to return home by murdering someone, how do you choose between family ties and the law? Calls from the sewers, zombies in Changbai Mountain, tooth-snatching corpses, the world of imaginary beasts, and granulation farmers are all in the agent of Yin and Yang.