In an ordinary city, there is a little-known "Ghost Story Street" where countless supernatural stories circulate. The optimistic "non-professional" ghost hunter Cheng Fangxin, together with scientific hacker Li Keling, live broadcast expert Dimple and others, formed a half-hearted "paranormal investigation team". They are ordinary people during the day, but at night they are constantly involved in various supernatural events in the depths of the city - both bizarre and terrifying, but also full of unexpected laughter. They take orders to catch ghosts, sue grievances on behalf of ghosts, solve century-old mysteries, and encounter "friends" whose authenticity is difficult to distinguish, nonsensical ghost missions, and a group of mysterious "ghost market" businessmen. With each adventure, the team's relationship becomes closer, and the big urban mysteries hidden under daily life are gradually revealed. And as the fog is lifted layer by layer, everyone has to make a choice about the ultimate secret of the "ghost market" and the "order of the human world". In the end, under the test of emotion, responsibility and reason, the protagonist group used the humor and courage of "talking to ghosts" to find the answer to the coexistence of the world of humans and ghosts.