Psychological Mysterious Case.

Summary

The summary reveals a complex investigation into a murder case involving psychiatric patients. The police team, led by Song Ao Yue and Su Yun, interrogates doctors from An Nian Psychiatric Hospital and explores the connections between Yang Bin and his ex-girlfriends. They initially suspect hospital director Lin Zhan Qing but ultimately determine he is not the killer. The investigation uncovers a deeper motive related to eliminating the "pest" who caused mental illness among patients, suggesting the real murderer is someone intimately familiar with the patients' medical conditions and skilled at gaining trust.

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