The iron-clad detective Xiao Yuejin only believes in human laws and does not believe in destiny, ghosts and gods; the cold fortune teller Luo Lingyuan is well versed in the cause and effect of the world and dares to defy heaven and resist punishment.
Bizarre murders occur frequently in Nancheng, and all criminal investigation methods have failed. The two men met because of a century-old unsolved case.
With the return of Yin Chao Su Qisu, Taoist priest Xie Xunyan, Xingjun Wen Zhaoqi, and spiritual body Xu Chengyuan, the unjust case of Xuanmen that had been sealed for hundreds of years came to light.
While adhering to the justice of the world, while fighting against the established fate, the two walked hand in hand in the vortex of cause and effect, searching for the truth of a century, and breaking the situation of life and death.
Intention: There is reincarnation in heaven, and there are laws in the world. A centuries-old Xuanmen grudge comes to light, and a bizarre murder stirs up the situation in Nancheng. Six people with fate break the situation and gather together to resolve the fog of cause and effect and redeem their past and present lives.