"Sing-Song" is the story of Jeannette, a little girl growing up in the Fifties who is consumed with resentment towards her older sister, Carol Anne. Carol Anne is seemingly perfect except for her covert taunting of Jeannette, for whom crooning love ballads offer an escape. Jeannette's bitterness mounts to a crafty retribution but she soon learns that her sister is the true solace in an unfair world.