This is the French and modern version of the global phantom hitchhiker archetype, known in France as the 'Dame Blanche' (White Lady). Although similar tales exist worldwide, in France the legend gained unusual credibility thanks to cases reported by sober witnesses and, at times, by the gendarmerie. The most famous case occurred in Palavas-les-Flots in 1981, where four young people claimed to have picked up a woman in white who then vanished inside the moving car.

The narrative typically follows a precise pattern: it's nighttime, raining or foggy. A lone driver or a couple spots a woman dressed in white at the edge of a secondary road or near a dangerous curve. Upon stopping, she gets into the vehicle, often in the back seat. She remains silent or becomes agitated as they approach a specific point in the journey. Suddenly, she shouts 'Watch out for the curve!' or simply points out the danger. When the startled driver overcomes the obstacle and turns to thank or reassure the passenger, they find the seat empty. The seatbelt remains fastened, or the door was never opened.

For folklorists, this White Lady is an evolution of ancient road fairies or guardian spirits, adapted to the automobile era. Unlike other ghosts seeking revenge, the French White Lady is usually interpreted as a protective spirit or a warning. She is believed to be the soul of a woman who died in a traffic accident at that very spot and now tries to prevent others from suffering the same fate. However, the trauma of the encounter is often so strong that drivers report it to the police in a state of shock. It's a legend that speaks to the fragility of life on the road and how modern, violent, and sudden death leaves an energetic imprint on the asphalt.