明朝成化(huà )年间，朝纲腐败，奸邪当(dāng )道。西厂东厂为宦官把持，混淆黑白，陷害忠良，朝野内外(wài )噤若寒蝉(chán )。时有赵(zhào )怀安（李连杰 饰）等流亡(wáng )剑(jiàn )客挺身而出，接连(lián )铲除(chú )东厂数名奸佞，致令阉(yān )贼胆(dǎn )战(zhàn )心惊。适值此时(shí )，风头正劲的西厂