Working on the soundtrack for her first Hollywood film, singer-songwriter Iris Evans (Suki Waterhouse) struggles to balance the demands of her burgeoning career with those of her family. Her mother Mary (Claire Cage) has terminal cancer, her ex-boyfriend Bobby (Craig Roberts) refuses to accept that they’re no longer together, and to further complicate matters, her musical hero, American composer Eleanor Roberts (Jennifer Grey), arrives at her parents’ home in Wales to help her work, bringing with her another set of emotional issues for Iris to deal with.