Otto and Ana are kids when they meet each other. Their names are palindromes. They meet by chance, people are related by chance. A story of circular lives, with circular names, and a circular place (Círculo polar) where the day never ends in the midnight sun. There are things that never end, and Love is one of them.
The movie is about love -- or, rather, about their grand ideas of romance. It is comforting to think that we can love so powerfully that fate itself wheels and turns at the command of our souls.