Marcos Tremmer is a successful advertising executive living in Madrid, deeply in love with his wife, Lucía. One day, Marcos discovers that a deadly illness will end his life within a few months.
Mario, a keen birdwatcher, but unable to drive, offers to pay a man he just meet to drive him from Valencia to Romania. Neither of them is aware of the other's story, but a new and definitive journey starts for both of them.