明朝(cháo )成化年间，朝纲腐败，奸邪当道。西厂东(dōng )厂(chǎng )为宦官(guān )把持，混淆黑白，陷害忠(zhōng )良，朝野内外(wài )噤若寒(hán )蝉。时有赵怀安（李连杰(jié ) 饰）等流亡剑(jiàn )客挺身而出，接连铲(chǎn )除东厂数名奸佞，致令阉贼胆战心惊。适值(zhí )此时，风头正劲(jìn )的西厂(chǎng )