Fresh out of jail after one year imprisoned for narcotics possession, Rose-Lynn Harlan is a 23 years-old working-class girl from Glasgow, Scotland, who tries to rectify her chaotic life: foul-mouthed, streetwise, rebellious and free-spirited, Rose-Lynn reunites with her children, older Wynonna and younger Lyle, cared for during her imprisonment by their grandmother Marion, who openly despises her daughter's lifestyle. A worker in the bakery of a shopping center for twenty years, Marion struggles to understand her daughter, who becomes determined to travel Nashville, Tennesse (country music's cradle) to become a famous country singer. Due to a lack of resources and her poor academic studies, Rose-Lynn tries to return to her former job as a singer in the country bar Grand Ole Opry, having been fired by owners Jackie and Alan after they learn about her conviction. Thanks to Marion's good name, Rose-Lynn gets a job as a cleaning lady in the house of Susannah, an upper-class woman married to James, and mother of little children Rory and Nell. Blessed with talent, charisma, cheek, and a powerful voice, one day Rose-Lynn is discovered singing in her daily work by Susannah, who befriends Rose-Lynn and decides to help her to travel to Nashville by throwing a fund-raising party especially for her. Therefore, troubles are around the corner: Wynonna and Lyle are time and time again neglected by a mother unable to reconcile with them who hides their existence to Susannah, James mistrusts Rose-Lynn by the way that Susannah is interested in her, and Marion sends an ultimatum forcing her to make a choice between her dream to be singer, or her reality to be mother. Troubled, auto-destructive and badly influenced by her friend and occasional lover Elliot (a fan of alcohol, night and wild partying), Rose-Lynn finds herself trapped in a crossroads struggling against her worst enemy: herself.