One rainy day, Cheol (Shin Seong-il), who is a lowly auto mechanic, and Yeong-hui, who works as a maid at the home of the Korean ambassador to France, meet by chance. Cheol has a great desire to succeed in life. He tells Yeong-hui that he is the son of a businessman and pretends to be the owner of a luxury sedan. Attracted by Cheol, Yeong-hui also pretends to be the ambassador's daughter, and the two promise to meet only on rainy days, when she can hide her real identity by wearing an expensive French raincoat. Cheol and Yeong-hui continue to meet for romantic dates in the rain and their love deepens day by day...