Looking for a Mirror

Late at night, a murder occurred in the Emerald Garden Apartments. The female corpse had a knife mark on her neck and a mirror on the bedside table. There is a line of words engraved on the back of the mirror: "The third mirror, please check." Criminal investigation team leader Lu Xingzhou took over the investigation and found that the modus operandi was exactly the same as the unsolved "Mirror Case" ten years ago. Psychological consultant Shen Yan joins the task force - he is the son of the fifth person who died ten years ago. Three years ago at Wuhai Police Academy, they were two people sitting at the same table. Lu Xingzhou left a note "Wait for me when I come back." Shen Yan made forty-seven calls, and his phone was turned off every time. Shen Yan thought Lu Xingzhou had abandoned him. Lu Xingzhou thought Shen Yan had changed his number. When they met again three years later, Shen Yan avoided and Lu Xingzhou approached. The relationship between the two people was recalibrated little by little during the investigation, like two mirrors being slowly pushed in front of each other. Old cases and new cases overlap, and the truth behind the three mirrors is emerging. When Lu Xingzhou was investigating the case, he discovered that there was an invisible line between the case ten years ago and the three years he disappeared - he had been tracking down the person who killed Shen Yan's mother. In the three years since he disappeared, he never contacted anyone. He thought about countless possibilities of reunion, but he never thought that he would have to answer one question first: why did you never come back after you left. Intention: Confirm that the person in front of you is real. Confirm that the murderer is real. Make sure you are not abandoned. Confirmation that a decade-old case has not been forgotten. Shen Yan's illness made it difficult for him to tell "whether the person standing in front of him was Lu Xingzhou", so he needed to confirm repeatedly - touching, breathing, and heartbeat. The case made it difficult for him to tell whether "the murderer came back or someone was imitating him", so he needed to compare it repeatedly - fibers, handwriting, and timelines. Both lines share the same action: get closer and see more clearly. The whole book answers one question: When you can't tell what's true or false, what else can you believe? The answer is: The mirror was stuck, but someone was willing to turn it over. When he turned it over, the face reflected in the mirror was the same person's face - not a double, not an imitator, but the one who sat across from the library ten years ago, left a note, waited for three years, and smoked his last cigarette before leaving. The core of the idea is: one person's existence needs to be confirmed by another person. Why is the mirror closed? Because the murderer doesn't want to be seen. But Lu Xingzhou turned it over. Why is Shen Yan afraid of getting closer? Because he can't tell the difference between true and false. But Lu Xingzhou never avoided it. He stood there and let Shen Yan confirm for three years until he didn't need to confirm anymore.