On a rainy night in Lingang City, elite psychologist Lu Ming became the "perfect suspect" overnight - all the evidence accurately pointed to him for killing his wife's cousin Zhang Wei: cufflinks, shoe prints, surveillance images, and the motive for the murder formed an impeccable chain of evidence. The police quickly arrested Lu Ming, and public opinion was in an uproar.
But detective Lin Tao has doubts. The trauma of his partner's death three years ago made him instinctively wary of "perfect" evidence. Under pressure, he and forensic doctor Qin Yue dug into the doubts: the remaining fibers of cufflinks pointed to the used bookstore, the tiny flaws of the figure in the surveillance, the abandoned nursing home that the deceased secretly investigated before his death... The clues led Lin Tao to the notorious "Sacred Heart Nursing Home" twenty years ago. An illegal "Mirror Project" was conducted there, and Lu Ming's father was the leading doctor. The assistant Yang Zhen who "died" in the fire actually left the same shoe prints at the scene of Zhang Wei's case!
Lin Tao peeled off the cocoon and discovered that Yang Zhen was the victim and scapegoat of the tragedy in the nursing home. He endured for twenty years, turned into Lu Ming's "shadow", imitated his behavior closely, used Zhang Wei's investigation to set up a situation, and forged a chain of evidence to push Lu Ming into the abyss - just for revenge and to destroy the Lu family's "perfect" illusion. In the cliff confrontation, Yang Zhen laughed wildly and revealed the truth before falling into the sea and disappearing.
Although Lu Ming was released from prison, he was socially dead and his family and career were ruined. When Lin Tao thought the dust had settled, an anonymous package arrived again: "The perfect suspect... Can be mass-produced. The game is far from over." Reflected in the glass, the eyes under the brim of the hat were like poisonous snakes targeting new prey. The dark legacy of the sanatorium is still spreading, and the deadly game of the "Man in the Mirror" has just begun...
