Matt Franklin (Topher Grace Topher Grace) has just graduated from MIT, but he doesn't seem to want to follow his father's wish to enter the financial world. Instead, he chooses to work in a video store while thinking about what he wants to do. Until one day, the girl Matt had a crush on in high school, Tuoli (Teresa Palmer Teresa Palmer), accidentally walked into his video store and invited him to an International Labour Day party, which happened to be held by Matt's sister Wendy (Anna Faris Anna Faris) and her boyfriend. At the party, Matt found that Wendy didn't like her boyfriend so much, and her former friends were all facing life crises. These troubled teenagers unanimously decided to put aside their worries and be wild and happy tonight, but after tonight, the fates of several young people began to be intertwined.