On the windswept shores of fictional Wallis Island, a bard emerges, blending the scenic Welsh coastline with folk music’s ethereal sounds. The film explores a secluded sanctuary untouched by modern life, where nature’s serenity meets deep melancholy.

Herb McGwyer, portrayed by Tom Basden with understated charisma, arrives expecting an intimate performance for dedicated fans. The island—a stunning landscape of wild terrain and quirky details—harbors an unexpected narrative: this concert targets a single audience member, Charles, an eccentric superfan played by Tim Key.

A surprising twist reveals the concert’s deeper purpose. Herb’s former partner, Nell Mortimer—played with captivating grace by Carey Mulligan—appears as an unexpected presence, stirring dormant emotions and unresolved histories. The narrative unfolds gently, revealing the complex layers of their relationship through moments of quiet tension and shared memories.

The concert becomes a catalyst, sparking interactions that explore the nuanced terrain of their past connections.