电视台每天午夜开播成人节目，市民疯狂追捧，为了准点观看节目不计代价……开心台的不文沾（黄霑 饰）主持一档成人笑话节目，其人名利双收，但是对待给自己写笑话的幕后英雄阿光（黄光亮 饰）却非常刻薄，与妻子楣（叶子楣 饰）联手克扣阿光的人工。爱上风尘女的阿光试图要回自己的应得报酬，最终与不文沾闹翻，投奔了开心台的对手高兴台担任策划，阿光在庙街发掘了唱咸湿歌的尹光光与不文沾对抗，大受好评。此消彼长，失去了阿光的不文沾却再也无法回复往日辉煌。开心台与高兴台的对抗愈发激烈，他们为了打压彼此，不惜请来不文沾和尹光光的妻子互相诋毁，节目一片混乱……

電視台每天午夜開播成人節目，市民瘋狂追捧，為了準點觀看節目不計代價……開心台的不文沾（黃霑 飾）主持一檔成人笑話節目，其人名利雙收，但是對待給自己寫笑話的幕後英雄阿光（黃光亮 飾）卻非常刻薄，與妻子楣（葉子楣 飾）聯手克扣阿光的人工。愛上風塵女的阿光試圖要回自己的應得報酬，最終與不文沾鬧翻，投奔了開心台的對手高興台擔任策劃，阿光在廟街發掘了唱鹹濕歌的尹光光與不文沾對抗，大受好評。此消彼長，失去了阿光的不文沾卻再也無法回覆往日輝煌。開心台與高興台的對抗愈發激烈，他們為了打壓彼此，不惜請來不文沾和尹光光的妻子互相詆毀，節目一片混亂……

James Wong stars as a late night talk show host who tells some of the dirtiest jokes and is insanely popular. His show is the biggest rated late night show on television. But all of his credit should go to his mistreated joke writer (Tommy Wong). Instead of paying him the money he truly deserves, James Wong short changes him every chance he can get. His personal life is a mess as well. He has a hot wife whom he can't satisfy and no friends.