Shen Yan is a descendant of the witchcraft who hides in the city. He has access to yin and yang, kills evil spirits, is cold and taciturn, and lives alone.
In the old inpatient unit of Jiangcheng No. 1 Hospital, the baby kept crying in the middle of the night, and the nursing staff was frightened to death.
Criminal investigation captain Lu Chen personally visited the house and invited the mysterious consultant to join the mystery.
Bodies have been buried in the wall for thirty years, cursed murders have occurred one after another, evil masters have been cultivating evil spirits, and the whole Jiangcheng has been involved in the overall situation of yin and yang.
He uses the art of shamanism to save the souls of the dead,
He protects the world as a criminal policeman.
Shen Yan: I'm in charge of the yin and yang.
Lu Chen: I don't care about you.
An old case reveals the secret behind the genocide of the witch hunt;
One encounter turned out to be a fateful bond for a hundred years.
It turns out that he is not a passerby, but the young master Wu Jin;
It turns out that he is no coincidence, he is the successor of the guardian.
The two powers join forces to defeat evil spirits, reveal the truth, and protect each other.
In this life, he protects his yin and yang, and he keeps him safe every year.
