Samee Ngern Phon (2001)

it's the original version of the 2nd remake, Sattawat is a doctor whose mother has a gambling addictions, he marries Anusaya to pay for her mother's debts & Anusaya agrees to marry Wat to be able get rid off her uncle Chaya who is in love with her.

Begin Again is the Cdrama and newer version based on the same Thai novel. Highly reccommend watching Begin Again.

Piang Chai Khon Nee Mai Chai Poo Wised (2016) is the remake of Samee Ngern Phon, has the same plot, same ending with Kimberley & James Ma