This is a very subtle film. It has a broad canvass of characters who once were at university together, but each one engages you as a different career path, or a different example of how things can work out.
Death brings them all together, as I think it does to groups every so often in life. The reactions reveal the hollowness, wisdom or dissatisfactions of their own personal life choices or misfortunes. Some of the film is contrived, some of it becomes a bit far-fetched, but the warmth and intelligence of the movie is not in doubt.