国中三年级女生秀（陈德容 饰）与同学小莉（陆元琪 饰）友谊甚笃，与经常出入娱乐场所的小莉相比，秀显得太过文静。平静的校园生活中，不时有不良分子，头脑活络的生意人局长等不安定因素掀起波澜。小莉与校外帮派分子小九（张世 饰）的恋情打得火热，对低年级男生阿宝的花式示爱视而不见。因为小九的关系，小莉在校内不良份子面前胆气颇壮。秀在小莉背后尽力维护她和各方关系，但大部分时间无能为力。 　　班主任（庹宗华 饰）对小莉的学业低迷忍无可忍，出面呵责却让小莉选择离校。小九因利益纠纷受人威胁，连累小莉不知去向。秀在广播中听到小莉的道歉，组织几位好友对小莉展开了一场营救行动。

The film explores the friendship between two school girls balanced on the cups between childhood and the adult world. The break between them comes when Leah, the headstrong and fearless of the two, severs the already fragile bonds of family and school life and rushes headlong into a darker world where, if pressures still exist, the players are at least less judgmental. Meanwhile, Sarah, timid and more plant by nature, nevertheless rebels against her friend's choice and is at first relegated to spectator while Leah is almost willingly made the pawn of the destructive man she loves. As Leah slides deeper into the surreal, we watch as Sarah makes her own extraordinarily dangerous choices to save her friend from certain destruction.