A wealth of knowledge, a glamorous ball, and a handsome drummer Stephen (Cam Gigandet Cam Gigandet) excite the newly entered college girl Sarah (Minka Kelly Minka Kelly), while her friendly roommate Rebecca (Leighton Mestre Leighton Meester) makes her college life more perfect. However, life is not as calm as it seems, and Rebecca's surly character is gradually revealed. she not only threatens her close friend Tracy (Ellie Misha Alyson Michalka) to stay away from Sarah, but also brutally kills Sarah's pet cat because Sarah is moving away. Sarah was frightened by Rebecca's strange possessiveness. She finally couldn't stand her sick roommate and decided to stay away from it, but it wasn't that simple. This film is a collection of handsome men and beauties from several popular American TV dramas, coupled with real reports in newspapers, which saved enough gimmicks for the film before it was released.