Warriors Two (1978) [Blu-ray]

Cashier Hua (Casanova Wong, The Shaolin Plot) leads a simple life working for a local bank, the only complications resulting from trying to give life advice to his friend Fat Chun (Hung). When Hua discovers a murderous plot to overthrow the mayor and is left for dead, Chun urges him to protect himself by learning the formidable style of Wing Chun from master Leung Tsan.