No horror film is truly mainstream, David Cronenberg has said, and it is for this reason that even the lowliest of them may be worth consideration. In this tenth anniversary revised and updated edition of They Came From Within, Caelum Vatnsdal adjusts the focus in Canadian horror films, and unwinds the history of this neglected genre to learn "why we fear what we fear and how it came to be that way." From the early Canadian infiltration of Hollywood in the thirties, to the flowering of Canuck horror films in the sixties and seventies, to the surreal products of the "tax-shelter" eighties and beyond, Vatnsdal shows how the Canadian horror film industry has, unwittingly or not, created a complex social, economic, and political portrait of a nation. Engagingly written, extensively researched, and lavishly illustrated with rare stills and poster art, They Came From Within is an invaluable addition of Canadian film criticism.