Part of the soundtrack of the movie Highlander from the same year. It is written by Brian May, but has an added orchestra by Michael Kamen, who made the soundtrack. So this is maybe more film score than a Queen song. Since I loved the movie, this single was quite a find.
For those who don’t know: Highlander is about a uhm… person from the Highlands in Scotland that cannot die. When he falls in love with a woman, he ends up seeing her getting old and dying, while he is still young and looking good. The song tells his anguish about it.