After living in Shanghai for three years, Sarah (JAIME KING) and her husband, Jason (TERRY CHEN), and young son, Sam (REGAN OEY), return to North America for a family funeral. But something strange is going on.

While the family stays with Jason's Aunt Mei (CHENG PEI PEI), Sam starts seeing ghosts and then falls gravely ill. Traditional western medicine offers no hope.

Sarah turns to a mysterious pharmacist (HENRY O) who warns that her son is being held in a death grip by a living corpse. Sarah must find out what the spirits want if she is to save her child, and she must do it before dawn, because once the sun rises at the end of Ghost Month, Sam will be lost forever.