笨鸟

秋末冬初的中国南方小镇，留守少女林森（16岁）正在准备高考，远赴广东打工多年的妈妈一心要她考警察大学。林森却在班里每天被同学霸凌，在家亦常被三个表弟捉弄，十分烦躁，邻近高中女生梅子是她惟一的疏解对象。身为养女的梅子不想照顾脑瘫弟弟，两人常逃离家人彻夜呆在网吧。 梅子高中发生了女生被奸杀案，梅子手机被养母没收，林森趁帮班主任没收同学手机之际，偷了霸凌自己女孩的手机送给了梅子。之后又受梅子怂恿继续去偷手机。梅子带她用低价出售手机的钱去做发型，并与发型师们一起夜宵。林森被灌醉，醒来不见梅子，此后也不再接林森电话。 林森开始了独自去卖手机的冒险之旅，她遇到了同校男孩大威，林森开始依靠身为派出所所长儿子的大威，逐渐忘了梅子。妈妈为了跟亲朋好友借钱突然而归，她察觉到林森的变化，伺机检查了林森的下体……妈妈的发现让林森困惑不安，对方是谁？

Winter is just about to start in a small town in southern China, when Lynn (16), a 'left-behind' child who grew up with her grandparents, prepares to take the high school final examinations. Her mother, who works in faraway Guangdong as a long-time migrant worker, wants her to get into a police academy. But Lynn's preparations are not going well. At school, she is bullied by her classmates, while at home three cousins never stop teasing her. Her friendship with May, who attends another high school in town, is her only outlet. May doesn't like taking care of her disabled brother, and the girls often escape from their family homes to spend the night at a Net Cafe. After a girl at May's high school is raped and killed, May's foster mother confiscates her phone. When Lynn has to guard the phones of her classmates, she steals a phone of a girl who has bullied her and gives it to May. May encourages her to steal more phones, which they then sell cheaply. They spend the money on getting their hair done, and have a nightly meal with the hairdressers. Lynn is made drunk, and when she wakes up she can't find May. After this incident, May stops answering Lynn's calls. By herself, Lynn continues the risky path of selling stolen phones. She meets Dawei, a boy from the same school. As she comes to rely on this son of a police bureau chief, she slowly forgets May. Then Lynn's mother suddenly makes a trip home to borrow money from relatives and friends. When she sees how Lynn is changed, she decides to investigate her lower body... Mother's discovery leaves Lynn confused. Who was it?