By the Sword (1991)

A mysterious man, Suba, gets himself a job at a fencing academy, and as he learns the way of the students, the school, and its maestro, they learn that there's more to him than meets the eye. He gains (or regains?) his fencing skills and his philosophy of teaching clashes with the maestro's. As they are thrown into conflict, Suba and the maestro's past appear to be linked. And the resolution of their mysterious relationship may be a duel to the death.