The Red And The Gold (1969)

An old man escapes from a retirement home to impersonate a man who has died in his arms and told him he never went home to his new bride after the first World War. The old woman is suspicious at first but then lets him stay. The townspeople begin to talk but he wins them over even if they feel he does not look like the man in question. With time and his gentle ways change people's disposition toward him until he decides to leave. But his supposed wife firmly brings him back and they decide to get married.
An elderly nursing-home resident escapes on a mission to find the wife of a man who died after making a startling confession. The dying man tells his friend he never returned home to his wife after World War I. Once he finds her, the suspicious woman allows the man to stay and tell his story. His presence causes the townsfolk to talk about the elderly couple. Soon the man is tracked down by his own wife and must return to the old folk's home in this story of mistaken identity.