Unbeknownst to Ella, the room is not as empty as she thinks. A hidden camera captures her every move, her every touch, her every gasp. The lens zooms in on her fingers, slick with sweat, as they manipulate the yo-yo with increasing fervor. The toy becomes a stand-in for a lover's touch, her body arching in response to the phantom caresses it inspires. The room fills with the symphony of her breath, the soft thud of the yo-yo against her flesh, and the wet sounds of her arousal.