**The water of Forget River is cold, but the passion of the world is hot. One thought can transcend life and death. **
He is Xuan Ming, the scribe beside the Forgotten River, a transcendent existence in the underworld. He is in charge of the Book of Life and Souls. He can see all the forms of reincarnation, and his heart is as calm as an ancient well. His only obsession is to find the reincarnation of his beloved wife who passed away hundreds of years ago.
She is Lin Wei, an ordinary livelihood reporter in the human world. She is enthusiastic and kind-hearted. She travels around the city and has no knowledge of her past life, but she always wakes up in the middle of the night with palpitations and uneasiness.
When Xuan Ming finally sensed the fluctuation of her soul, he decided to leave the netherworld temporarily and came to the modern city. He just wanted to silently protect her peace in this life. However, Lin Wei seems to be naturally attracted to bizarre events - smiles in the mirror, ghosts in old buildings, evil spirits on the Internet... Bizarre cases occur one after another, seemingly caused by ghosts, but at their core are human nature distorted by extreme emotions: obsession, jealousy, regret, greed.
Xuan Ming had to intervene again and again to resolve the crisis with inhuman strength, which also aroused the suspicion and tracking of pragmatic criminal policeman Chen Tao. The relationship between the three evolves subtly amid suspicion, conflict and limited cooperation. In the process of jointly uncovering "supernatural" mysteries and witnessing the joys and sorrows, the indifferent secretary gradually understood the complexity and warmth of human emotions, and Lin Wei also began to notice the abnormalities and the inexplicable familiarity of the mysterious man next to her...