On the evening before rehearsals begin for her new work, Ulster-born playwright Ruth Davenport (Geraldine Hughes) visits the home of English director Leigh Carver (Max Baker), along with Oscar-winning Hollywood star Jay Conway (Matthew Broderick), who has just arrived in London to star in the world premiere. What begins as a cordial gathering to discuss the upcoming production quickly descends into a brutal psychological brawl as egos, ideologies, and historical baggage collide. A theatrical hand grenade disguised as a drawing-room comedy, Ulster American explosively reveals some raw contradictions at the heart of modern storytelling and political posturing.