The New York Theater Company is going to re-stage Swan Lake. As the former lead dancer Beth (Winona Ryder) has left, Director Thomas (Vincent Cassel) decides to audition for a new lead dancer and requires the lead dancer to play the roles of the black swan and the white swan. Nina (Natalie Portman) has been practicing ballet since she was a child. With her mother's careful care, she has outstanding skills. This time, she hopes to stand out. However, in the competition, she finds that the scheming Lily (Mila Kunis) is her strong opponent. In the selection, her white swan performance is impeccable, but the black swan is not as good as Lily. She feels exhausted physically and mentally, and she also found red spots on her back and foot injuries when she returned home. She went to the director alone, hoping to fight for it. The director took the opportunity to kiss her, but she was firmly rejected. As a result, the director actually chose her. Teammates suspected that she relied on her appearance to get to the top. At the cocktail party, Beth even vented in public. This pressure, coupled with injuries, has always affected her performance. The director inspired her to release her passion and show the temptation of the black swan. Under the strong psychological suggestion, she seemed to slide into the role of the black swan...