In the footsteps of the self-taught naturalist Christian Bouchardy, himself in the footsteps of the European otter (Lutra lutra), on the banks of the river Sioule, in the Auvergne. The distinctive feature of the otter is that it is invisible and thereby makes everything around it visible, by greatly increasing the attention of anyone tracking it. The naturalist’s quest is almost futile, because meetings with the animals only happen very exceptionally. From footprints to the otter’s droppings, just like the investigator puts himself in the criminal’s shoes, the naturalist has to put himself in the otter’s to be able to follow it. And the artist looking for his flee(t)ing subject becomes that subject himself. If no otter is spied, it will become a subject. You must always have a plan B. LD