In the sultry heat of an Arab summer, a brother and sister, isolated in their family home, find solace and sin in each other's voices. Their words, once innocent, now drip with sexual innuendo and explicit desires. He, a voice of authority, commands her to strip, to reveal her hidden delights. She, a voice of surrender, complies, her body responding to his words with a life of its own. Their voices, once a source of comfort, now a tool of seduction, lead them down a path of taboo pleasure, where the only barrier between them is the air they breathe.