Why is it, that no matter whether the depiction is serious or light-hearted, every time we see a story about ghosts, the assumption is that they're hanging around because they have some unfinished business to take care of?
Here's a preview from Ricky Gervais' new film Ghost Town.
And here's from the classic horror film The Sixth Sense.
Why can't ghosts ever just be here because they're here? And where do these movies assume they go once the business is done? With all the mystery surrounding afterlife and whether ghosts even exists, it's interesting that everyone is so certain the storyline purpose of a ghost is unfinished business.