Lu Xun and Su Lingxi, the two names are engraved on the soul-calling talisman at midnight in the city. As a relic organizer, Lu Xun can always find a strange "Book of Souls" among the deceased's belongings, and Su Lingxi, a forensic doctor with yin and yang eyes, happens to be able to see the resentful spirits summoned by the book.
The cries in the abandoned office building, the bloody handprints in the closet of the old house, and the death videos left by the missing people. Every mystery corresponds to the name in the "Book of Souls". Lu Xun's fingertips can activate the talisman in the book, and Su Lingxi's lancet can cut off the obsession of resentful spirits. The two went from being wary of each other to joining forces to chase the murderer, fighting against the evil spirits hiding in the shadows in the reinforced concrete jungle.
When the last page of the "Book of Souls" was opened, they found that they had become pawns for the revenge of the evil spirits, and behind the book, there was also a secret of the Yin-Yang contract that spanned a century...
