Antoine is a joyful but disenchanted photographer. His only true friend, Mateo, is 7 years old and the son of his neighbor, who is often absent. One day, he hears a piano sonata coming from the building across the courtyard. Mesmerized by the music, he becomes obsessed by Elena, the beautiful but mysterious pianist, and starts to photograph her at every opportunity. An intense relationship develops between fragile and idealistic Elena and Antoine, who is transformed by this encounter.
One day, on a whim, Marc decides to shave off the moustache he's worn all of his adult life. He waits patiently for his wife's reaction, but neither she nor his friends seem to notice. Stranger still, when he finally tells them, they all insist he never had a moustache. Is Marc going mad? Is he the victim of some elaborate conspiracy? Or has something in the world's order gone terribly awry?