Joon Ho is a third year high school student who just finished taking his university exam. His main interest is to sleep with Seo Yeong, his girlfriend, but, so far, she has turned him down.
《检察官外传》讲述了黄政民饰演的检察官被冤枉成杀人罪而判刑入狱，在监狱中他结识了姜东元饰演的诈骗犯，于是利用他偷抢拐骗的才能，向黑社会组织展开复仇的故事。
