明(míng )朝成化年间，朝纲腐败，奸邪当(dāng )道。西厂东(dōng )厂为(wéi )宦官把持，混淆(xiáo )黑白，陷害忠(zhōng )良，朝(cháo )野内外(wài )噤若寒(hán )蝉。时有赵(zhào )怀安（李(lǐ )连杰 饰）等流亡剑客挺身而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊(jīng )。适值此时，风头正(zhèng )劲的西厂