Trapped in the tiny confessional, sisters Maria and Isabella find themselves face-to-face with their stepbrother, Lucas, instead of the priest they expected. As they stammer out their sins, Lucas's eyes darken with desire. He reaches out, his hand cupping Maria's chin, tilting her face up to his. Isabella watches, her heart pounding in her chest, as Lucas's thumb brushes against Maria's lips. When he turns his gaze to her, she can't help but lean into his touch, her body aching for more. In the cramped space, they give in to their taboo desires, their bodies pressed together in a feverish, desperate dance.