Twenty Years of Snow: the Case of the Red Star Factory

On a snowy night in the north in 1998, Wang Deshun, the warehouse manager of the Red Star Machine Tool Factory, died from a blunt instrument. Precision parts were stolen. The unsolved case amid the wave of layoffs became the obsession of detective Li Zhenguo. Twenty years later, when he retired, he saw an iron scale at a tofu stall in the morning market, and his memory was suddenly awakened - the suspected murder weapon at the crime scene was the same item. The old factory was about to be demolished. He followed the clues and uncovered the whereabouts of three weights in the canteen, which implicated the disappearance of laid-off worker Sun Guoqiang and the secret of his sister Sun Mei. Snow has covered the footprints, time has buried the truth, and Li Zhenguo clings to the rusty clues to find an answer for the deceased twenty years late in the dust of the times.