Antonio and Isabel are married singers who are national ranchera icons. Their relationship is distorted by their worries on each others work. New problems arise as Isabel`s cousin Felipe comes to town and breaks their duo unintentionally by contracting Isabel to a Spaniard`s theater group, and Antonio as a musical advertiser for an Italian woman`s chocolate company. Separated and lonely, Antonio and Isabel get emotionally distant and start to long for each other. It`s Felipe`s fault and as he realizes the consequences, begins to plan ingenious ways to join the couple back together. With Antonio being late for a commercial filming, Felipe manages to make the couple to reconcile and to sing their iconic "Dos corazones y un cielo" song.