chunk: Thomas tells Nina to watch Lily (Mila Kunis), another dancer in the company, whom he describes as lacking Nina's flawless technique but possessing an uninhibited quality that Nina has not shown. The relationship between Nina and Lily grows tense. During rehearsal, Thomas kisses Nina passionately, but leaves abruptly and tells her she must seduce him with her dancing. Nina finds unexplained scratches and blood on her body. Nina and her mother have an argument, interrupted by Lily's unexpected arrival at their apartment. Lily and Nina go for a night out.