Half-brothers Michel and Bruno have a mother in common but little else. Michel is a molecular biologist, a thinker and idealist, a man with no erotic life to speak of and little in the way of human society. Bruno, by contrast, is a libertine, though more in theory than in practice, his endless lust is all too rarely reciprocated. Both are symptomatic members of our atomised society, where religion has given way to shallow �new age� philosophies and love to meaningless sexual connections.