The bathroom fills with steam, not just from the running bath, but from the sisters' feverish bodies. Their hands are bound behind their backs, their mouths gagged with their own panties. They stand side by side, their nudity a stark contrast to the stern woman before them. She holds a whip, her eyes gleaming with sadistic pleasure. She begins to educate them in the ways of her world, each snap of the whip a lesson in pain and humiliation. The sisters' bodies bear the marks of her teachings, their skin reddening under her expert touch. They squirm and whimper, their bodies betraying their arousal even as they fight against their bonds. The mistress smiles, her work just beginning.