明朝成化(huà )年间，朝纲腐败，奸邪当道。西厂东厂(chǎng )为宦官(guān )把持，混淆黑白(bái )，陷害忠良，朝野内外(wài )噤(jìn )若寒蝉(chán )。时有赵怀安（李连杰(jié ) 饰）等流(liú )亡剑客挺(tǐng )身而出，接连铲除东厂数名奸佞，致令(lìng )阉贼胆战心惊。适值此(cǐ )时，风头正劲的西(xī )厂(chǎng )