Harry, an Australian veteran from World War I, and Caitlin, an English girl, meet briefly at the end of the war. When Caitlin writes to Harry with the news that her husband Patrick has died, and that she has given birth to a son, Joseph, they begin friendly correspondence. Through these letters, Harry's feelings for Caitlin grow into love and he eventually proposes marriage to her. Caitlin initially feels it is too much of a wrench to leave Patrick's...