In 1979, a French girl, Snow, filled with curiosity, set foot in China, where the college entrance examination had just been resumed. By chance, she meets and gets to know Liu Changgen, a young man, and with his help, she goes into the countryside of China, witnesses the backward custom of marriage exchange in the countryside, and fights against the stereotypical thinking of the village, but fails and returns to France. A goodbye for four years, to Liu Changgen can not forget the Snow again returned to China, heartbroken to find that has been the village of the rich Liu Changgen married the same village girl. Not knowing the truth of Snow's grief, left China, this unforgettable cross-border love, buried deep in the heart, choose to die alone, never set foot on this land.