This is a long shot but I will ask if anyone else remembers this TV movie. I think it was on ABC late night during 1976 give or take a year.
The plot was that an Air Force crew was stationed way up north near the article circle. (I think it was a radar station) One day their dead relatives show up to meet them. Being dumb, they bought the story that these really were dead relatives coming back to life. But the commander found out that one guy never knew his parents -they died when he was a baby. But he had dreamed about his parents. So as you may have guessed , the “relatives” were actually aliens.
I’ve read a variation on that elsewhere: I think it was an old EC comic, doing something akin to a Bradbury “Martian Chronicles” story. (It may have been a Bradbury story, but I don’t remember it from the book.
(Or, what Andy L said.)