Eighteen-year-old Patricia, daughter of ditch-digger Pascal Amoretti, falls in love with charming pilot Jacques Mazel. Their romance is interrupted by war when Jacques leaves for the front line, leaving Patricia pregnant. Soon, tragic news arrives about his death. After giving birth, Jacques' affluent parents refuse to acknowledge the baby. However, Patricia is not alone—the loving presence of her father, ready to defend his daughter, remains steadfast beside her.