During the Hongwu period of the Ming Dynasty, Ding Wu and Jiang Huang were a pair of brothers in the Jingyiwei. One had a pregnant wife and was trapped in the tea, rice, oil and salt; the other fell in love with a woman in a youth house and was waiting for a chance to rise to the top in the ordinary workplace. The two are ordered to investigate a serial murder mystery case, leading to a major corruption case.

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