Rosalyn's world revolves around control — of her body, her schedule, and her emotions. Beneath her composure, she's haunted by the loss of her twin brother Gabriel and the emotional absence of her parents, particularly her addict mother, Madelyn. Rosalyn channels her grief into perfecting herself athletically and academically, yet she struggles with loneliness and the pressure to fill the silence Gabriel left behind. As the story evolves, her relationships with Emma, Kiara, and Isaac force her to confront vulnerability. Her dynamic journey tracks from tightly wound self-control to dangerous release through sex, drugs, and defiance, then eventual rediscovery through recovery and closure.