Ling Xi (David Chiang) is a rebellious youth whose liaison with underage girlfriend Cindy (Agnes Chan) is the spark which lights the eventual flame of his rebellion. Against the wishes of her parents, Ling Xi and Cindy move in together, and the two find a measure of bliss in their shared life. However, rumors circulate that Ling Xi is using Cindy as a means of financial support. After his brother Ling Zhao (Di Lung) returns Cindy to her parents, Ling Xi is branded an outcast. His anger only leads to spiraling bitterness, and finally employ in a triad gang which gives him the ability to release his frustration - which he does until the bitter end.

　　1970年代初的香港。

　　富家子弟凌希（姜大卫）对父亲所指的出国念书、将来做体面人之路无半点兴趣，他看重的是与女友辛蒂（陈美龄）在一起及鼓捣汽车时的无忧无虑，父亲几次试图劝服无果后表示理解，但警告他将来不要后悔。辛蒂有一个更为固执的父亲，虽然她是天生的歌手，父亲却严禁她唱歌，更难以接受不满16岁的她身边时刻有个“流里流气”的“阿飞”。

　　某事令辛蒂再也无法忍受父亲，她逃离到凌希家，但凌希父亲早有明确态度，这个家不欢迎未成年少女。不感沮丧反觉是种解放的凌希和辛迪找了间陋室租住了下来，两人一个在夜总会唱歌一个在汽车修理厂做工人，日子虽然辛苦，却因有美好的未来可憧憬令他们更加相爱。但他们将一切想的太过天真。