Mantis Fists and Tiger Claws of Shaolin (1977)

When the local thugs harass a restaurant owner's daughter Shuang Shuang (Choi Chuk-Guen), a newcomer Pai (John Cheung) fends them off. When Pai goes off to the local brothel to find his long lost sister, the thugs rape Shuang Shuang, but get killed mysteriously later in the woods. The father of the thugs, Hung Chun Piao (Dean Shek), believes that Pai committed the murders and confronts him...