Deadly Fists of Kung Fu

In the second year of the Republic of China, Shanghai is a prosperous city, full of rich businessmen - and their respective bodyguards. One of these, Tih Wu Ching, is a murderer who later, repents and abandons his low life. Yu Chiang and Yu Chin, brother and sister of the man he killed, are after him, although they only know his nickname.
(Source: IMDb)