吉姆（莱昂纳多·迪卡普里奥 Leonardo DiCaprio 饰）是一所天主教学校的高中生，同时他也是纽约最棒的高中球队中的一员。他与球队另外三名球员整天厮混在一起，逃课，嗑药，偷窃，斗殴，他们的青春在纽约街头肆意挥霍。吉姆把自己的生活都记录在“篮球日记”里。随后，吉姆最好的朋友鲍比因白血病而死去，此事给吉姆极大的打击。 　　因为纽琼的一个“惊喜”，吉姆开始接触迷幻药，不久他就沉溺于毒品中。与母亲的缺乏交流，学校教父简单粗暴的教育，球队教练的性骚扰，这一切都让吉姆在自暴自弃中越陷越深。每一次毒瘾发作，他们都会用尽手段搞来买毒品的钱，吉姆跌入堕落的深渊…… 　　本片根据作家兼音乐家吉姆·卡罗的自传体小说改编。Film adaptation of street tough Jim Carroll's epistle about his kaleidoscopic free fall into the harrowing world of drug addiction. As a member of a seemingly unbeatable high school basketball squad, Jim's life centers around the basketball court and the court becomes a metaphor for the world in his mind. A best friend who is dying of leukemia, a coach ("Swifty") who takes unacceptable liberties with the boys on his team, teenage sexual angst, and an unhealthy appetite for heroin -- all of these begin to encroach on young Jim's dream of becoming a basketball star. Soon, the dark streets of New York become a refuge from his mother's mounting concern for her son. He can't go home and his only escape from the reality of the streets is heroin for which he steals, robs and prostitutes himself. Only with the help of Reggie, an older neighborhood friend with whom Jim "picked up a game" now and then, is he able to begin the long journey back to sanity.