Sai Sok (1967)

After the death of Chao Khun Thirarat, who leaves his estate, including his house and Sai Sok Farm, to his adopted daughter Banyen, his wife, Khunying Thirarat, and their son Kitti devise a scheme to reclaim the inheritance. They arrange a marriage for Banyen and manipulate her into becoming pregnant. But the greed that drives them to such a sinister plan becomes the beginning of turmoil and long-buried secrets that have haunted the farm for years.