The eight-character story of two families happened in just one day, but it involved past grievances, separatism and chaos. In the narrow stage, not only the contradiction between ethics and class, but also the contradiction between individuals and the environment and the times are strongly uncoordinated. In all kinds of fierce conflicts, the characterization was completed. In fact, the tragedy has long been lurking in every line, every foreshadowing, and it only broke out at the last minute and became one.