I know this theme becomes popular this time of year. But, there are no such things as ghosts. There are fallen angels that impersonate ghosts. I have had my fair share of encounters with them. But, they flee in the name of Jesus every time.
If you are interested in a brief study on the state of the dead, I recommend this link:
Glock 17, 19, 20SF, 21C, 22, 26, 27, Glock E-Tool, Glock knife
Quod ego haereticus appellari sequere Jesum.