The story of Emily Rose is mostly a creation for entertainment or to convey certain themes. There's no concrete evidence to suggest it's an actual real-life event. It could draw from common fears or myths but doesn't have a factual basis.
Well, sort of. While the movie 'Emily Rose' takes elements from a real event, it also adds fictional elements for dramatic effect. So, it's a blend of reality and creativity.
It is a very complex and poignant story. The main character, Emily, is a symbol of the old South. Her life is full of isolation and mystery. The use of the rose in the title can be seen as a symbol of love, pity or a tribute to her in a way.