明朝成化年间，朝(cháo )纲腐败(bài )，奸邪当道(dào )。西厂东厂为(wéi )宦官把持，混淆黑白，陷害忠良，朝野内外噤(jìn )若寒蝉。时(shí )有赵怀安（李(lǐ )连杰 饰）等流亡剑客挺(tǐng )身而出，接连(lián )铲除东(dōng )厂数名奸佞，致令(lìng )阉贼胆战心惊。适值此时，风头正(zhèng )劲的西(xī )厂(chǎng )