Psychological Mysterious Case.

Summary

In this investigation, Song Ao Yue and Su Yun discover that mysterious hallucinations at A University are caused by infrasound played through the school's broadcast system. The sound resonates with people's internal fears, causing them to see terrifying visions like Han Fang's ghost or a red-clothed female ghost. Students like Zhong Xiao Lan and Wang Ya experienced these hallucinations, with symptoms including ear pain and intense psychological distress. The investigators trace the source to the broadcast room in the Shuo Zhi Building, revealing a calculated method of psychological manipulation.

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