Beth, Milena, and Carina are three college students whove shared some of Rios most wild and legendary parties for the past few semesters. After living in New York for a year, Beth returns on New Years Eve a changed girl, willing to mend her ways and grow up. Milena and Carina, however, are not happy about their friends change - Keen on stopping Beth form becoming respectable at all costs, they show up at her house with dozens of friends to celebrate the New Year. Before dawn, secrets will be revealed, friendships will be tested, hearts will broken, and tears (and other bodily fluids) will be spilled. As the night unfolds, we also witness past events in a seedy nightclub, which changed the lives of those three girls forever.