1998. A child taps with his pelvis on each corner of his desk. Aloud, he lists multiples of 5. It is the space between the desk and the wall that obsesses him. He is not as he should be. And leaving things as they are, accepting a slight shift, would be putting his world at great risk. In the world, in fact. 2019. Mathieu is 33 years old. Sometimes still, his pelvis seeks the corner of the office. But he learned to give it less importance, to accept the slight shift, thus discovering that between the desk and the wall, indeed, there was indeed the world.