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

Summary

The summary reveals a complex murder investigation involving sleep testers, with surveillance footage mysteriously showing Chen Xue dragging a victim's body into a women's restroom. The third murder case bears striking similarities to an international criminal case previously studied by the narrator and Chen Xiao Yan. The narrator suspects Chen Xiao Yan might be connected to these murders, potentially manipulating her sister Chen Xue. The anonymous video's origin remains unknown, adding another layer of mystery to the increasingly bizarre and supernatural series of killings.

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