Bad weather forces a plane from Denmark to land at a Slovenian airport. Among the passengers is a quiet, beautiful young Danish girl named Iben. While the passengers are being transferred to a hotel in Ljubljana, she meets Tina who drives the shuttle bus as a summer job. The girls speak to each other in English and in their native languages. Only one of these two languages uses the so-called dual, a special grammatical form used in expressions that involve just two subjects. As the girls form a connection, it becomes apparent that they need one another, but they are both very cautious because one of them has a secret that the other one senses.