In the throes of a wild, hormone-fueled party, the teen stepsister's world is turned upside down as her stepdad, fueled by alcohol and primal instinct, crashes the scene. His gaze, hungry and intense, lands on his stepdaughter, stripped down and dancing. He moves towards her, a predator stalking its prey, as she watches, frozen in fear and anticipation. He grabs her, his hands rough and insistent, pulling her close, his breath hot on her neck. "You're mine," he growls, before backing her into a corner, ready to claim her in front of her shocked, silent friends.