Corruption is strife in Wan Ping County in Hopei Province.Two good-for-nothing loafers Chen Ming (Michael Hui Kwun-man) and Chia Liang (Wang Sheng) arrive and turn the officials on their head.

• 故事背景在河北省某贪污成风的小县内，流浪汉甄明（许冠文）与贾亮（王琛）因掌握一众县官的贪污或丑闻证据，得以顺水推舟假扮县长，把各官员玩弄于股掌之中，但最终笔锋一转，结局出人意表。