Aurora tells the story of Teresa and Mariana, seemingly the perfect couple, whose true natures emerge when they are alone. As jealousy begins to consume Mariana, Teresa must leave before it is too late. Will she escape the toxic relationship in time?

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Visually, the film uses a split screen as a metaphor for the two, each becoming only half a person. In the opening shot, the protagonists appear as one; by the final shot, as Teresa leaves the house and escapes her mental prison, the split screen dissolves, restoring her to herself.