When wide-eyed Irène (Audrey Tautou), a horoscope-believing, hopeless romantic, exchanges glances with a young restaurateur on a train, it's love at first sight. But they'll continually intersect -- through dozens of other people's lives -- before they meet. French writer-director Laurent Firode's fanciful, "What if?" film co-stars Faudel, Eric Savin, Lysiane Meis, Eric Feldman and Nathalie Besançon.