In the French Riviera in the summer of 1915, Jean Renoir, son of the Impressionist painter Pierre-Auguste, returns home to convalesce after being wounded in World War I. At his side is Andrée, a young woman who rejuvenates, enchants, and inspires both father and son.

A teenager feels an endless fascination for his cellular which will enable him to reach his aim: alluring the pretty high-school girl he's in love with. Unfortunately, this special "addiction" will not be without negative consequences on the behavior of the boy...