Nina is a ballet dancer living in New York, and Like her peers, Nina in this life in most of the time and effort devoted to the ballet. She and her own stubborn mother iResearch stuck together. Erika was once a ballerina, now she will not dance, but in order to let his daughter be able to accomplish something in dance, her own daughter the purposes of stifling discipline. Now, Nina where Ballet rehearsal of "Swan Lake". Directed by Thomas? Leroy is also prepared to replace the former chief ballerina Beth? McIntyre, Nina as a new performance season premiere of actor. Nina is his first choice, but not the only choice. Now Nina has a rival: a ballerina called Lily the same as impressed with their performance Thomas? Leroy. "Swan Lake" is one pair of the actor demanding ballet. Starring to be able to play a pure, noble, kind of white swans, but also can play an evil, vicious line, the cunning of the Black Swan. Nina audition white swan , her performance is quite perfect, and impressed the director; At the same time, Lily, played by Black Swan as the appreciation of the crowd. The two young dancers in the role of the competitive process unacceptable feelings, and Nina seems dark side - the dark will eventually ruin her life and talent.