The film gradually shows Nina's transformation into the Black Swan, the role she finds most difficult to play, due to her purity induced by her mother. Even though Nina is 28 years old, she still lives with her mother. In her own room, we can see a childlike air, with a pink painting, and surrounded by teddy bears, which already establishes the atmosphere of the house and how is the relationship between mother and daughter, which deteriorates throughout the work…