While solving a kidnapping case, criminal police officer Gao Xiang unexpectedly uncovers a missing teenager case. Psychological testing expert Mu Qing is urgently assigned to assist in the investigation. Amid numerous difficulties, she uses advanced micro-expression–based lie detection techniques to locate physical evidence. Working closely with Gao Xiang, they uncover the truth and uphold the authority of the law. Confronted with a challenging case with “three no’s”—no physical evidence, no confession, and no eyewitnesses—the investigation relies on high-information, highly specialized polygraph methods, leading to a direct psychological interrogation showdown with the suspect. (Source: Chinese = Douban || Translation = kisskh) Edit Translation
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