On her mother's death Ellie Matthews inherits her hat shop in Dublin. Ellie resists the temptation to sell out to developers and decides to keep the shop and continue her mother's business. She begins to design and make beautiful hats and as word spreads, finds herself making hats for an unusual range of customers. Ellie makes 'A Show Hat' for a model for Ladies' Day at the Dublin races, 'A Wedding Hat' for Constance O'Kelly for her daughter's wedding, to which her ex-husband is insisting on bringing his new girlfriend, a 'Mayor's Hat' for Mo Brady, the city's new lady mayor and 'A Memory Hat', commissioned by young Tommy Butler, to celebrate his grandmother Lily's one-hundredth birthday. This is a tale about wonderful hats, but also about the people who buy them too - and their remarkable stories.