Who believes in GHOSTS?

Do you believe in ghosts? In the past, I thought ghosts only existed in books and films. But then my friend told me this story. I don't think it's true, but I'm not sure....
A married couple were on their way home from a party when they saw a young girl on the side of a country road. They stopped and gave her a lift in their car. The girl's name was Lucy and she lived in a cottage opposite the pub in the next village.
For the whole journey, Lucy didn't say very much.All she did was look out of the window. So the couple drove quietly to her village. When they arrived Lucy's cottage, the man turned around to speak to her, but she wasn't there!
The man was very surprised. He knocked on the door of the cottage to tell the people there about Lucy. When he described her, it became clear that she was their lost daughter.Several years before, she disappeared while waiting for a lift on that same country road.
So what do you think?