At ten, Melody Sparks, better known as Baby Girl, is excited to move to the tropical island of Trinidad with her single-parent dad, but she silently longs for her mother, a woman she can't recall ever meeting and doesn't have a photo of. She fits in to her new life in Paradise Lane quite well: she loves her school and makes new friends. However, her longing for blood family remains strong. But Baby Girl is suddenly and unexpectedly uprooted from her comfortable life in Paradise Lane and forced to reside in Flat Hill Village, a depressed, crime-ridden community. She struggles to adjust to life in this village with the help of new friends, Arlie, a village activist and Colm, a young man who mentors her to write poetry. When Baby Girl witnesses a serious crime, her father insists she move in with relatives she doesn't know very well, where she ultimately uncovers the truth about her mother.