John Varley

An investigator seeking the cause of an airline disaster discovers the involvement of an organisation of time travellers from a future Earth irreparably polluted who seek to rejuvenate the human race from those about to die in the past. Based on a novel by John Varley. (imdb)

Gerald Whitley is a prominent writer with a ruthlessly selfish wife in a story dealing with love and art in a high-society background. of Joan Channing, a model posing for a portrait for Gerald's brother George Whitley, meets Gerald and becomes romantically involved without knowing that he is a married man. George also falls in love with Joan. The situation is resolved in a surprising ending.