Ms. Amelia, a meticulous and well-respected singing coach, receives Ramon, a young man who wants to improve his vocal technique so he can sing a tribute at his recently deceased mother’s memorial. The chosen song, “La Golondrina”, has a special meaning for him and, apparently, also for Amelia, who despite her initial reticence, agrees to give him a lesson. As the afternoon progresses, the two characters unravel the details of their past, deeply marked by a terrorist attack in a bar.