Rit (Mit), a wealthy young man, and Lin (Miss Margaret Lin), a peasant girl, are a couple from vastly different social classes. They overcome various obstacles together to build a married life. But life is like a spinning windmill; Lin becomes pregnant and suffers an accident that causes amnesia. Meanwhile, Rit has to travel abroad, giving his mother, who despises poor daughters-in-law, an opportunity to get rid of Lin in order to make Duangporn (Petchara) her daughter-in-law, as she had always hoped. But will the power of love, gratitude, and goodness have an impact on the turbines of their lives?