曾小丹是位纯情美丽的中学生，但他的父亲嗜毒成性，使小丹的母亲离家出走。不久，父亲又被单位除名。断了经济来源的小丹为了继续求学，向她的同学周健求助。但周健此时也受到家事困扰，在公司当经理的爸爸嫌弃已经人老珠黄的妈妈，由于离婚的问题吵得家里乌烟瘴气，周健无奈之下与朋友到舞厅散心，被“大姐大”胡丽引诱吸了第一根含白粉的烟。小丹被黑道老大熊剑看中，他假惺惺地表示要帮助小丹，却利用他俩的单纯去传送白粉。周健的毒瘾越来越大，他开始变卖家中的东西来换白粉。小丹为挣钱，在胡丽开设的歌舞厅里唱歌。熊剑找机会强奸了她，在万般无奈之中，她甘心做了熊剑的情妇。内心苦闷，小丹去找周健诉苦，由于胃病发作疼痛难忍，周健给她吸了搀有毒品的烟，从此小丹也沦为一个吸毒者。周健的毒瘾越来越大，在一次辑毒行动中被警方收容审查。一位女记者采访了周健，她的劝导和感化使周健开始戒毒，重新走上了光明之路。而被熊剑抛弃后的小丹，为了换取毒品，只有靠出卖色相和盗窃艰难度日。有一天，为了争夺一针海洛因小丹被父亲打昏，苏醒后她发现父亲已经因过急注射毒品致死。小丹被逮捕，最终因为吸毒、卖淫、盗窃，被判处有期徒刑八年。宣判过后，已经心力憔悴的小丹心脏病突发，死在了肃穆庄严的法庭之上

The sad Xiao Dan seeks help from his classmate Zhou Jian (played by Chen Zhijian), but Zhou Jian also has a lot of troubles at home, and he is powerless. 　　 Under the temptation of big sister Hu Li (played by Pu Chaoying), Zhou Jian was contaminated with drugs and was out of control. Gradually, Zhou Jian and Xiao Dan began to help Hu Li with drug trafficking, and the two got deeper and deeper. Xiaodan became a showgirl in the karaoke bar run by Hu Li. In the end, Xiao Dan still became addicted to drugs. Xiong Jian abandoned her. Xiao Dan could only raise money to take drugs by selling himself. The desperate Xiao Dan felt that life was better than death, but still could not resist the call and temptation of drugs.