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Financial tycoon Chen Huaishan died in a locked study in "Jinglu", a top community in Yungang City. The scene was like a carefully designed puzzle: a corpse holding a strange chess piece, red wine stains on famous paintings, disturbed mobile phone signals, and six elite guests who each had their own secrets. Detective Lu Mingshen, a psychology expert, stepped deeply into this perfect crime scene and found that every suspect - an estranged lover, a renegade partner, an indifferent stepdaughter, a debt-ridden housekeeper, a scandal-ridden lawyer - possesses the IQ and motivation required to carry out this murder, and has a mutually corroborating alibi. The murderer seemed to have not only predicted the direction of the investigation, but also left a provocative sense of ritual in the crime. This is a fair showdown of intelligence. In the seemingly impeccable time gap, Lu Mingshen must distinguish which clues are mistakes that the murderer cannot cover up and which are deliberately arranged bait; under the elegant social appearance, he must analyze the deep undercurrents that can drive sophisticated murders.