Kwam Song Jum Mai Huajai Derm (1998)

The story of a young girl who lost her memory. When she found out that her fiancé led another girl into a hotel, she's devastated and suffers an accident. She meets a young man who lost his love almost ten years ago. They fall in love, but he finds out that his new love has a fiancé. He still stays by her side, trying to help her regain her memory. When her memory comes back, the truth about her fiancé is revealed and the young man starts to have hope again.