A strange murder occurred in the Huaiyuan Community of Binhai City. The locust wood coffin on the deceased's pillow matched the pattern of the bronze token left by Luo Wushuang's father. She teamed up with hacker Chen Mo, forensic doctor Su Qingyuan, ancient book scholar Mo Xun, and veteran Zhao Lei to investigate, and found that everything pointed to the "Seven Evils Yin Wedding Formation" of the "Netherworld Society", a black market organization for evil objects - using the pagoda coffin to suppress the seven souls, in an attempt to open the netherworld to resurrect the evil spirits.
Each of the five people has their own unique skills: Luo Wushuang uses martial arts to suppress evil, Chen Mo Zhimang breaks codes, Su Qingyuan heals evil spirits with medical energy, Mo Xunwen Mang Tonggu, and Zhao Lei Yongmang protects the formation, but they are trapped in a family curse and supernatural crisis. From paper figurines in abandoned ancestral halls to blood-sacrifice rice dumplings in Yizhuang, they are caught between modern technology and ancient alchemy. They must solve the mystery of the Sophora coffin before three o'clock in the morning and prevent the yin and yang imbalance of the world's destruction conspiracy.