The two men sang a fire while driving in winter, which made the killer not too cold and quiet. Judging from the relevant public information, this killer is not too cold or too quiet, and the propaganda song MV is exposed. Mary Wei Xiang magically sang A Fire in Winter, which was produced by two directors, Yan Fei and Peng Damo. Xing wrote and directed a film "This Killer is not too cold or too quiet", and recently released the propaganda song "A Fire in the Winter of 2022" for this film.