After Li Weidong, a Ph. D. In economics, died suddenly overnight, he traveled to a courtyard house in Luogu Lane in the south of Beijing in 1950, and became Li Weidong, a lonely man whose parents were both dead and who was being plotted by his neighbors. At the beginning, he encountered Jia Zhang, Xu Damao and others who coveted real estate. He relied on modern thinking and understanding of the times to skillfully resolve the crisis.