Pak coek gung's family rents the third floor of a tenement building. Due to the water shortage, Pak's porridge stall is difficult to operate. At that time, Ah Seng, the son of Pak, owed money to Cheung, the fat man downstairs. Cheung saw that the porridge stall could not operate, so he took away the license of the porridge stall. In order to get the license back, Pak's daughter Miuying had to work as a dancer to pay off the debt. Then Pak's neighbors helped the porridge stall reopen and even reported Cheung for wasting water.