Nina is a danseuse in a New House of York metropolis concert dance company whose life, like all those in her profession, is wholly devour with dance. She populate with her obsessional former danseuse female parent true heath who exert a smother control over her. When artistic manager Seth Thomas Leroy decide to replace leading danseuse Beth MacIntyre for the gap production of their new season, Swan Lake, Nina is his first pick. But Nina has competition: a new professional dancer, Lily, who affect Leroy as good. As the two immature dancer spread out their competition into a distorted friendly relationship, Nina get down to get to a greater extent in touching with her dark side - a foolhardiness that endanger to destruct her.