Desc: Tang shan wu hu: Directed by Mar Lo. With Chiu-Sing Hau, Siu-Hung Leung, Austin Wai, Mo Yuen. Three young martial arts students and their teacher are beaten up badly by a wandering man who proclaims himself ''a corrector of bad kung-fu.'' Determined to avenge their teacher and regain their honor, the three students all go their separate ways to find kung-fu masters who will take them as students.