I'm Working as a Sleep Tester in a Haunted House.

Summary

The story follows three men, Song Fei, Xiang Long, and the narrator, who become suspicious of an elderly woman after observing her behavior in a hotel. They attempt to follow her discreetly but find her disappearing from the elevator without a trace. Despite their efforts to track her movements, surveillance footage reveals that she vanished the moment the elevator doors opened. This leads to speculation about her possibly being a ghost, as they had seen her enter the elevator. The three are left baffled, questioning the nature of her disappearance and the implications of the surveillance technology.

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