Jiang Xun, a junior student in college, is a young Buddhist who only cares about passing the exams. However, during an expedition to an abandoned hospital, he accidentally got involved in the "Uncanny Realm" - a dead space condensed by human collective fear. Here, the rules of the real world are twisted into murder traps: the ward has hospitalization rules, the elevator has a taboo list, and the reflection in the mirror will replace the body. Jiang Xun awakened the ability of "spiritual vision" at the critical moment of life and death. With the folk knowledge notes left by his grandfather who ran around in the world and an old pocket watch that can warn three times, he became the most unconventional rule breaker in the mysterious realm.
At the same time, a thrilling live broadcast system of unknown origin bound him - audience rewards can be exchanged for survival props, and the number of followers determines the probability of survival. He teamed up with the sassy spirit-detecting anchor Ji Lan, and from being forced to survive to taking the initiative to fight, he gradually uncovered the truth behind the live broadcast system: it was the "backdoor" left behind by his grandfather for the rest of his life, using the power of all living beings to fight against the erosion of the world.
As the investigation deepens, a secret organization "The Guide" that has lasted for hundreds of years has surfaced. They maintain the seal with human sacrifices of fear, and Grandpa is the renegade founder of the organization. Jiang Xun must collect the lost "Book of Nightmare Suppression" in the ten volumes of the mysterious realm, and face the ultimate choice - to sacrifice himself to become the new core of the seal, or to break the ancient creed that "fear must be eliminated"?