Nang Nak

Mak leaves for Bangkok and is seriously wounded in the Chiang Toong War. His wife Nak dies together along with her stillborn child. However, when Mak returns, they continue to live together, him unaware that she is a ghost. Soon, the forces of the supernatural realm eventually prove that such co-existence ultimately leads to an unexpected resolution.
(Source: MDL)
~~ Based on the Thai legend of "Mae Nak Phra Khanong" (แม่นากพระโขนง) or Nang Nak (นางนาก).