No matter how old you are, you never get over high school. Successful PR pro Marni heads home for her older brother's wedding and discovers that he's marrying her high school arch nemesis, who's conveniently forgotten all the rotten things she did so many years ago. Then the bride's jet-setting aunt bursts in and Marni's not-so-jet-setting mom comes face to face with her own high school rival. The claws come out and old wounds are opened in this crazy comedy about what happens when you're reunited with the one person you'd like to forget.