Master Tai Yau Kung (Lau Ka Fai) is skilled in training official adviser for government. ,He helps his foster son Chow Bing (Ma Kwok Ming) obtain a job in official doom. Bing is a resourceful young man but he holds fast to his own beliefs. He finds all the rules and practices of the officials intolerable so he stays idle all the time. Sometimes he goes tavern to have fun and he falls into the adorable owner Chong Siu Han (Leila Tong). His wife Chiu Yuk Hing (Tsui Tsz Shan, Kate) becomes green-eyed monster and never stays in settlement with him.
Kung recommends Bing to work as an adviser to the new government official Shum Kwan Pok (Matthew Ko) Bing and Pok become good friends as time goes by. However, Bing accidentally discovers that his respectful master Kung is actually the father of Pok.
In order to protect himself, Pok starts making use of Hing to eliminate Bing. Bing is shocked to realize that his wife is in fact a spy dispatched by Imperial…

深受幕学大师兼养父戴有恭(刘家辉)的提携，足智多谋的周炳(马国明)因利成便加入官场的幕僚行列，不过他择善固执，不屑幕僚间的种种陋习，终日投閒置 散，更不时上酒馆打发时间风花雪月，迷上善解人意的酒馆老闆庄小嫻(唐寧)，惹起醋罈子正妻赵玉卿(徐子珊)日夜发飊，对他穷追猛打。有恭顾念周炳，推荐 他為新官沉君博(高钧贤)作幕僚，二人经过磨合，由心生猜忌而渐成患难兄弟，但周炳却无意间发现了恩师有恭正是君博的亲生父亲，见利忘义的君博為保仕途， 竟利用玉卿的秘密身份借刀杀人，周炳始发现日夕共寝多年的髮妻原是朝廷派来监视自己的密探..