Jiang Xue, a well-known investigative journalist, began an in-depth investigation into the political injustice that happened in his hometown nearly half a century ago. "Xue‘s investigation" was one of Jiang Xue's main self-media at the time, but it was suspended in a short period of time because of the depth and sharpness of the work and the courage to reveal the truth of the incident. During the filming by Jiang Xue, the video version of "Snow Visit" produced by Tiger Temple was only made in the first phase of the film and one person (Xiang Chengjian) died prematurely, making it a precious historical film.