柯南是一位比较窝囊的香港警探，负责一起谋杀案的侦破。在侦查过程中，柯南被人设计陷害，反而成了一名杀人凶手。在女友和上海表妹的帮助下，柯南终于查清，原来凶手竟是女友父亲兴国。兴国之所以杀人，是因为受到别人敲诈。而他设计陷害柯南，却是因为不想有一位当警探的女婿在自己身边。真相大白后，柯南洗了冤屈，又赢得了爱情。

富商孙越得了绝症，孙老爷希望在病逝前能找到他的唯一的亲人——一个失散二十年的儿子作他的遗产继承人。另一方面，又命管家找到杀手在他最快乐的时候杀死自己，免受病魔的煎熬。 同时，孙越为了使自己在临终前得到快乐，在酒帘找到叶倩文，要求她搬进家中住，以作陪伴于身，酬劳是遗产继承人！ 盗贼尔东陛及其女友林青霞，爱情骗子陶大卫，光棍方正许不了等，都争相认为孙之亲生子……

A high school loser dreams of winning the heart of the principal's daughter, but his chances are slim as long as her bruiser boyfriend's around. Fortunately, a chance meeting with Garlic and Gimmick, renegade cops who cause nothing but headaches for their superiors. Chief Wong Yat Fei decides to send his boys undercover in Wong Fei Hong College to protect a general's daughter from Mainland China, but that's where their problems begin. Their boyish good looks may fool their classmates, but how will the two undisciplined cops pass their classes, let alone protect a girl who's tougher than they are?

2005 film by Chu Yen-ping