A visa problem forces Adrien back to Paris after 15 years in Senegal with his wife Aminata. Her cousin Sékou, distanced from his Senegalese origins, takes him in. As Adrien waits to return, Sékou shows him France, sparking surprises.
In Paris in 1894, a young woman voluntarily allowed herself to be locked up in the Salpêtrière hospital in order to look for her mother. A ball is being prepared there.
