Zhao Yiwu, a senior girl, has a talent that is different from ordinary people-she can read the most secret psychological motives of criminals. With this ability, she assisted the police in solving important cases as an academic consultant. But this time, she was "invited" into the interrogation room.
A sudden murder occurred in a high-end apartment in the south of the city. The deceased drowned in his bathtub. His posture was as peaceful as a medieval sarcophagus. There was a date that had not yet come: December 23 written in blood on the edge of the bathtub. What's even weirder is that there is a note on the refrigerator at the scene - "Zhao Yiwu knows who the murderer is."
She is dragged into an elaborate "conversational murder" mystery. Every corpse is a word, every scene is a sentence, and the real murderer seems to be her senior brother who mysteriously disappeared three years ago - the once most dazzling and dangerous criminal psychology genius, Yuchi Xinglin.
Before his disappearance, he said: "Some people commit crimes not for gain or destruction, but for expression."
Zhao Yiwu finally understood that he was not studying this phenomenon—he was creating it. And the final audience of this murder feast is only her.
She must survive this cat-and-mouse game and prove that those who understand madness may not become more dangerous madmen.