Michel is a nuclear engineer. On his birthday he invites several friends, prostitutes and a rich woman called Hermione in to his country villa. Michel will brighten their presence by playing at the piano and reciting the famous poem by Gabriele D'Annunzio "La Pioggia nel Pineto": a tribute to nature and its beauties. After eating and coupoling to the limit of human possibilities Michel will die as a result of an apocalyptic diarrhea the morning when the guests leave the house.