Fan Xue is the only survivor of the murder case of a wealthy businessman in Jiangcheng five years ago. He lives incognito as a low-level forensic assistant, but secretly uses the vest of "Kirigakure" to become a top criminal profiler in the industry, and has been investigating the truth of the murder case that year.
Three months ago, he received a mysterious invitation and went to Wuyuan Villa to participate in a forensic seminar. However, after waking up on a snowstorm night, he lost his recent memory. He was surrounded by evidence engraved with the strange symbols of the family murder case. There was also an unidentified corpse in the Villa. All the evidence points to Fan Xue being the murderer. The abnormal reflection in the mirror, the extending footprints, and the stopped clock all push him into the abyss.
While pretending to be a panicked ordinary person to trick the murderer into relaxing his vigilance, he also secretly used the ability of a top detective vest to investigate the case. He not only had to avoid the encirclement of his companions, but also found the truth in the memory fragments - why did everyone say that he was the murderer who had not yet completed the crime? He must solve the mystery and find out the mastermind before the snow stops. Otherwise, not only will the truth of the year be lost forever, but he will also be stigmatized as a murderer forever.
