The Prodigal Son (Chinese title: 敗家仔; Mandarin Pinyin: Bai4 Jia1 Zi3; Cantonese: Bai ga jai - lit. "Son Ruining the Family"), also released as "Pull No Punches," is a 1981 Hong Kong kung fu comedy film directed by Sammo Hung, starring Yuen Biao and Lam Ching-ying and featuring Hung in a supporting role. The film is based on the historical figures Leung Jan (Yuen Biao), Leung Yee-tai (Lam Ching Ying), and Wong Wah-bo (Sammo Hung). It features the martial art Wing Chun.
Leung Jan (Yuen Biao) is a young man in a wealthy family living in Foshan in the mid-19th century. He is a martial artist trained by two instructors in his father's employ. He has fought over three hundred times in Foshan and won every fight, but unbeknownst to him, his father has arranged for his servant Yee Tong Choi (Chan Lung) to bribe Jan's opponents to lose to him in order to protect him. This has caused Jan to believe that he is a world-class fighter, but in truth he hasn't even mastered the basics of kung fu and any real fighter could easily defeat him. Everyone knows this but him, giving him the nickname "The Prodigal Son" behind his back.
One night, three of Jan's friends attend a performance by the Lok Fung
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