Once

An unnamed guy is a Dublin guitarist/singer/songwriter who makes a living by fixing vacuum cleaners in his Dad's Hoover repair shop by day, and singing and playing for money on the Dublin streets by night. An unnamed girl is a Czech who plays piano when she gets a chance, and does odd jobs by day and takes care of her Mom and her daughter by night. Guy meets girl and they get to know each other as the girl helps the guy put together a demo disc that he can take to London in hope of landing a music contract. During the same several day period, the guy and the girl work through their past loves, and reveal their budding love for one another, through their songs.