Catherine Deneuve is the fresh and beautiful 16-year-old Genevieve, pining away in her mother's umbrella shop. When she falls in love with the charming local auto mechanic, Guy (Nino Castelnuovo), worlds collide. The young couple who, in their innocence, believe that love can overcome all obstacles, face many of them, including Genevieve's disapproving mother, an unexpected pregnancy, and Guy's induction into the French Army.