The Razor's Edge (1984)

Larry Darrell returns from the battlefields of World War I to America a different person. His fiance (Isabel) resigns herself to a delay in the wedding plans when Larry heads off to Paris. There he finds he prefers a simpler existence and begins to read. One book inspires him to visit India and on to Nepal where he finds spiritual help from a lama. On returning to Paris he finds Isabel and some old friends. Everyone has changed.