A profile of Forrest J Ackerman, the world's first and best known fan of science fiction and horror. Through archival footage, film clips and interviews with Ackerman and the fans and film-makers he inspired, Famous Monster follows Ackerman as he grows from a kid reading Amazing Stories magazine and watching movies like Metropolis and Phantom of The Opera, to a literary agent to the biggest names in fantasy writing, to the editor of Famous Monsters of Filmland, a magazine that inspired generations of film-makers.