‘Creatures Inside Us' is a fascinating one-off documentary exploring the human body. Currently, there are 100 trillion life forms in residence on you, and inside you. You are like a planet teeming with life. Many of these creatures are microbes and are, in fact, essential at keeping you alive. How is that possible? Who are these microbes that call your body home? ‘Creatures Inside Us' is an intriguing voyage into a world that is as fascinating as it is hidden, as crucial as it is mysterious: the Planet Human.