Dew (Anne Thongprasom) is a young computer programmer who meets Ton (Attaporn Teemakorn) in Chiang Mai during her distant cousin's funeral. They immediately become attracted to each other and start to date each other over the phone.
Back in Bangkok on Valentine's Day, Dew refuses to accompany her best friend, Ked, to a blind date because she is anxiously waiting for Ton's phone call. The consequence of this breaks Dew's heart as her friend is murdered by the blind date.
Dew immediately leaves for Chiang Mai and finds comfort in Ton. The two start a serious relationship and marry soon after. However, their new-found happiness is cut short when Ton dies of a brain tumor. Dew is again left alone.
Before leaving for Bangkok, she receives a mysterious letter, seemingly from her dead husband. As it turns out, Ton had written a series of letters prior to his death and arranged for them to be sent after his death to his widow. The letters help Dew through her grief. She finally is able to live without the love of her life and continues to live in Chiang Mai with their son, born after the death of his father.