Petra Cdzinha's lens follows a curious pair of siblings in Lisbon as they explore their taboo desires. The brother, a inexperienced but eager 'pupil,' finds himself the object of his sister's lust, as she teaches him the art of pleasure. Their intimate, forbidden dance unfolds in the cramped quarters of their apartment, from the bathroom to the kitchen, their bodies slick with sweat and lust as they push each other's boundaries, culminating in a messy, satisfying release.