Lin Ye, who was unemployed just after graduation, worked as a night shift security guard at Qingshan Cemetery in order to pay for his mother's treatment. At midnight, he could hear the remnants of the deceased's consciousness. Relying on the abandoned human body's final consciousness archiving technology, he made money by picking up echo clues and helping the consciousness image to be archived. During the investigation, he discovered the secret connection between the missing watchman Chen An, the faceless model in the West District and the number A17. The identity of the bracelet and access control were frequently confused, and Lin Ye finally learned that the cemetery was an experimental node left over from the 749 Abnormal Digital Cognition Project. The system, which had been dormant for many years, was gradually identifying him as the missing Chen An.
