A fierce showdown unfolds between two dumpling restaurants on the old street. Chen Guo'an slightly raises his dumpling prices, drawing complaints from the neighbors. Across the street, Zhao's shop launches ultra-low prices, instantly stealing all customer traffic. But behind the booming business, the back kitchen hides unknown secret operations. On one side, stubbornly guarding principles leaves business quiet; on the other, small profits and quick turnover make the doorway bustling like a market. In this price game, who will ultimately have the last laugh?