On a tranquil bend of a river, a couple stumbles upon an idyllic riverside cottage offered to rent, but the price keeps it out of reach. They marry, life quietly unfolds, and years drift by until the wind of war begins to blow.
Struggling composer Richard Wilder [Michael Denison] becomes an RAF Observer, and his plane is shot down in the snowy Dolomite mountains. He is found unconscious, face down in the snow, by Alida [Valentina Cortese], who saves his life and tends to his wounds. She shares with him a local legend about two star‑crossed lovers—one of them a ghost who guides a faithless partner to doom atop the Glass Mountain. The tale also speaks of echoes that answer the true love’s name when it is shouted aloud, a motif that will haunt Richard long after he returns to the world outside the war.
When the war finally ends, Richard returns to England to his wife Anne Wilder [Dulcie Gray]. He begins to work on an opera inspired by the Dolomite legend, a project that consumes his thoughts and seeps into his waking hours. One day, on his wife’s birthday, a magazine photo reveals Alida in London, being honored somewhere abroad. He tries to reach her, but she has already left the country. A sense of longing grows into something more complicated, and Anne begins to suspect—then Richard admits—that his heart has wandered toward Alida.
Back in Italy, Richard travels alone to the city where the festival is seeking an opera. The theatre scene is abuzz with possibility, and Tito Gobbi has spoken of Richard’s unfinished work to the organizers. Gino [Antonio Centa], a local man who loves Alida, matters deeply to the situation and presses Richard to walk away, but Richard refuses to bow to pressure. The clash becomes heated, but the conflict remains unsettled. Alida, in turn, persuades him not to abandon the project or their mounting attraction, and the opera is finally chosen for the festival. Richard enlists Bruce McLeod [Sebastian Shaw] as the lyricist, and the two men begin shaping the work, even as fear and desire tug Richard in two directions.
Anne’s world takes another turn when her friend Charles [Sidney King] is pressed into action to fly her to the Venice premiere. On their way, as they near the fabled Glass Mountain, she asks to glimpse the mythic peak itself. The plane veers toward the landscape’s awe-inspiring silhouette, and tragedy strikes as they crash near the mountain, altering the course of everyone’s life.
Within the opera imagined by Richard, the tale of Antonio and Maria unfolds with stark tragedy. Antonio promises to climb the Glass Mountain with Maria, but he disappears to the plain and never returns. Maria scales the mountain alone and is never seen again. At Antonio’s wedding to another woman, he hears Maria’s voice, climbs toward the peak, and dies in the attempt, a haunting echo of the legend that has haunted Richard since the night he first met Alida.
Back in the present, Richard conducts his own work to a standing ovation, but the celebration is interrupted by fateful news: Anne has been involved in an accident. Alida reveals the truth, and Richard is forced to choose between his muse and the wife who has stood by him. Alida recognizes the cost of his obsession and quietly bids him farewell. Richard races toward the mountain, guided by Gino, while the doctor lifts the veil on Anne’s prognosis: she is badly injured but expected to recover. In the shadow of that revelation, a stark realization settles in—life loses its meaning without Anne, and the choice before him becomes irrevocable, shaping the future and sealing the fate of both legends and lovers.
This tale blends the ache of artistic ambition with the fragility of human bonds, tracing how a single flame can illuminate the path between imagination and reality, between a distant myth and the ordinary life that still asks to be lived. The film unfolds with a quiet, measured mood, where memory and dream intertwine, and every note Richard writes becomes a tether that binds him to a person he nearly lost—and a love that finally gives his music its true purpose.