Set in 1920s, Yang Guiying comes to Shanghai with her son after her husband died. The life in Shanghai is also miserable, so she participates in the labor movement.Set in 1920s, Yang Guiying comes to Shanghai with her son after her husband died. The life in Shanghai is also miserable, so she participates in the labor movement.Set in 1920s, Yang Guiying comes to Shanghai with her son after her husband died. The life in Shanghai is also miserable, so she participates in the labor movement.