A boy growing up in Dublin during the 1980s escapes his strained family life by starting a band to impress the mysterious girl he likes.

Gretta, a budding songwriter, finds herself alone after her boyfriend Dave ditches her. Her life gains purpose when Dan, a record label executive, notices her talent.

A vacuum repairman moonlights as a street musician and hopes for his big break. One day a Czech immigrant, who earns a living selling flowers, approaches him with the news that she is also an aspiring singer-songwriter. The pair decide to collaborate, and the songs that they compose reflect the story of their blossoming love.