On Christmas eve, Serge is the only on-call emergency doctor available. Struck by a crippling back-ache, he gets help from a pizza delivery boy who will need to step in the doctor's shoes.

A visa problem forces Adrien back to Paris after 15 years in Senegal with his wife Aminata. Her cousin Sékou, now distanced from his Senegalese origins, takes in Adrien. As Adrien awaits his ...