When Lu Beisong was still unknown in the film world, he broke through all traditions, broke free from all the cages under all commercial mechanisms, and braved the great taboos of no color, no dialogue, no stars and so on. When the film was completed, because there was no way to promote it, Lu Besson took the film to the Awaukee Film Festival in Switzerland and won the special prize for judges and the film critic award, thus opening up his international reputation. Dissecting the ruins of civilization after the nuclear war, because there is no color, so this is a black-and-white film.