'What happens to an imaginary friend once they're forgotten? Where do they go? How do they live? And can their lives ever have any meaning again? For one such imaginary friend, life has been empty. Not even joining a rock band, spray painting philosophical graffiti, or socializing with other forgotten imaginaries can ease the pain. That is, until he finds a potential answer to the one question that's been consuming him this whole time'.
Source: IMDB (written by the script-writer). (Sighted: 5/10/2012)