Adaptation of the homonymous novels by Cecily von Ziegesar. Portrait of teenage life in the Upper East Side of New York who go to elite schools, but who venture into the world of drugs, sex and other problems. The protagonists are two girls who were very good friends, Serena van der Woodsen and Blair Waldorf, but have been in love with the same guy, Nate Archibald. Other characters like Dan and Jenny Humphrey, although not in the same social circle colleagues, share with them their adventures. There is an omniscient narrator, who has a blog on their neighbors in Upper East Side, where the rivalries of this exclusive group of friends arise.