A man whose life has smiled, decides to leave everything. He abandoned his house, his car and offered astonished passers-by his possessions and his freedom of action. By freeing himself from all constraints, he hopes to become a philosopher.

Casting sauvage is a documentary. All the screenplay's scenes are performed by professional actors going through auditions. The same set-up is employed in all the scenes: same lighting, sets, two cameras. Most of all, Casting sauvage is a story about Rémi, a young man in search of his identity, who travels through France on a scooter, looking for his father.