More than one of the same person

I was driving down a road with a friend.  We pulled of the road to take a rest and there was a copy of my friend.  She was an identical copy and said she was from the future.  Then there was another copy and my original friend disappeared.  Then a new copy showed up and one of the other copies disappeared.  I ask one of them which was the original and she said it didn't matter because they were all the same.  We drove to a house and I put the emergency brake on because we were on a small hill.  My friend got out and walked around the house to find an open door.  My car backed down the hill and crossed the road and ended in a field.