At the start of high school, Piper, Sophie, Isabella and Honor think they will be best friends forever, so they sink a time capsule in the lake with a list of things they want to do before graduation. By senior year, they have gone their separate ways. Piper has turned into the class clown, party girl who never passes …

　　

深圳罗湖关口，每日有数万旅客经此进入内地。这儿有一个落魄的香港人在等待机会，他是正东。不久，三名从香港来深圳寻欢的黑道古惑仔，甫一出关，即被正东截住，正东道出他的坎坷遭遇，希望对方可以借钱给他，江湖救急。其中一疏财仗义的给了他四佰元。正东拿了钱，交了房租，独自吃着饭，淌下了男儿泪…… 原来正东在江湖中曾有名气，与同门兄…