Lin Zhiyuan, an investigative reporter for a urban newspaper. Five years ago, her sister Lin Zhiyao disappeared mysteriously after a self-driving trip. The only clue was the last photo on her mobile phone - a village archway that did not exist on the map at all, with the words "Misty Hidden Village" written on the archway.
Five years later, Lin Zhiyuan received a letter without a sending address. There was only a yellowed invitation in the envelope, with a sentence on it: "On the 15th day of July in a leap year, it is the night to attract souls. Please return to your seat."
Following the vague address on the invitation, he drove onto a mountain road with dense fog that persists all year round, and accidentally entered a village that was off the map. People in the village treat him as old friends, but avoid talking about the "outside world"; the century-old stage at the entrance of the village is locked every night, but the sound of silk and bamboo is always heard; every midnight, a swaying white lamp is hung in front of every house, and the people standing under the lamp may not be living people.
Lin Zhiyuan gradually discovered that Wuyin Village held a "soul-guiding ceremony" every July 15th in leap years - a living person with a "returning soul destiny" was needed to be a "guide" to cross the Forgotten River on behalf of the dead in the village in exchange for peace in the village in the coming year. Five years ago, his sister was one of the "guides" selected.
As the investigation deepened, he discovered that the blood of "soul-drawing" connected to the blood of Kirigakure Village was flowing in his body. And behind all this is a human transaction that has lasted for two hundred years and is more terrifying than ghosts. Before the bell rings on July 15th, can he find his sister and escape from this "cannibal" village in the fog?
