Khun Chai and Nongsai are childhood friends. After Nongsai was diagnosed with polio leaving her unable to walk, Chai had to leave and go to America. To Nongsai, this was where their relationship ended, believing that her “p’Chai” had forgotten all about her. Years later, Chai comes back to Thailand, with his wife that he married abroad named Chomphilai. Khunying Aumporn, Chai’s mother, is quite unhappy with the fact. But after she finds out that Chom comes from a good and wealthy family, she decides to accepts her into the family.