The Coffin is a South Korean/Thai/Singapore horror film starring Ananda Everingham and Karen Mok.
A young man named Chris and several years later a woman undergo a Thai ritual of lying in a coffin, which is supposed to ensure long life and rid people of their bad luck. The ritual is also seen as a solution to fatal genetic diseases and diseases like cancer. The man Chris awakes and is brought to the hospital where doctors say he suffers from hallucinations. It turns out that the hallucinations are paranormal visits by his ex-girlfriend who dies along with her child just when his wife gets cured. The woman on the otherhand gets rid of her lung cancer however gets haunted by her boyfriend Jack whom she's supposed to get married to. The woman consults the aid of an expert in the paranormal and later Chris to try to solve her supernatural difficulties.