Moyra Fraser

The assistant stage manager of a small-time theatrical company (Polly Browne) is forced to understudy for the leading lady (Rita) at a matinee performance at which an illustrious Hollywood director (Cecil B. DeThrill) is in the audience scouting for actors to be in his latest "all-talking, all-dancing, all-singing" extravaganza.(imdb)

We see the detritus of an abandoned camp in South America and a main character's hallucination. Then, the story beings. Tony and Brenda Last, lord and lady, live on his enormous estate with their young son. Tony's not much for parties, and Brenda joins London society, on the arm of a penniless man, John Beaver, a hanger-on at Tony's club. John is encouraged by his entrepreneurial mother, who sees a quid in Tony and Brenda... (imdb)

The Korean War and a long lost letter separate the lives of young lovers Jean and Lionel, whose paths cross again by happenstance.