share time: 2026-01-04 12:34:29
Trainee police officer Lin Xiaoman goes undercover as a nurse at Qingshan Psychiatric Hospital to investigate her best friend's disappearance. She accidentally meets Gu Jingshen, a "psychiatric patient" who always holds a pathology book—this man not only accurately exposes her undercover identity but also claims to know the whereabouts of the missing person. As they cooperate deeper, Lin Xiaoman discovers Gu Jingshen's "madness" is a disguise; he's a forensic doctor investigating his brother's death. The director's strangeness and the nurses' silence all point to the secret of underground human experiments. When danger strikes, Gu Jingshen shields her from a lethal injection. At that moment, Lin Xiaoman realizes: the truth she's seeking has long been tangled with the beat of this man's heart.
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