Heralded racing driver Pierre Chaillot has never noticed the pretty young flight attendant who dotes on him adoringly. But when his fiancée's infidelity drives him to the brink of suicide, Pierre's guardian angel takes the form of this stewardess to urge him to choose life. Though the angel confesses her divinity, Pierre is skeptical of the existence of angels. But, despite their difference, the two bond during her brief sojourn in human form.