Jak-Ming Cheng

Mr. Smart considers himself the smartest man of Hong Kong. To this assessment, his mother takes strong exception. When he comes home from a seafaring job, he is angered by the fact his mother has rented out his room to a teacher. It takes, some great effort by his sister to concile him. Then her driver boy friend offends Mr. Smart. But soon they make up. The teacher talks Mr. Smart into starting a quick food shop. (imdb)