明朝成化年间(jiān )，朝纲腐败，奸邪(xié )当道。西厂东(dōng )厂为(wéi )宦官把持，混淆黑白，陷害忠良，朝野内外噤若寒蝉。时有赵怀(huái )安（李连杰(jié ) 饰）等(děng )流亡剑(jiàn )客挺身而(ér )出，接(jiē )连铲除东厂数名奸佞，致令阉贼(zéi )胆(dǎn )战心惊。适值此时，风头正劲(jìn )的西厂(chǎng )