Devil Sorcery (1988).
Hung is the young apprentice to the powerful wizard, Tung. While studying, Hung has an affair with his teacher’s wife. When their relationship is revealed, Tung attempts to trap his student, who escapes with the aid of Tung’s wife. Enraged at his treatment, Hung steals his teacher’s wealth and turns toward the black arts. Now it is up to Tung to hunt down and stop his former student before he wreaks untold havoc!
Directed by Do Gong-Yue.
Starring: Alan Chan Kwok-Kuen, Kim Gee-Mei & Stephen Chan Yung.