The alchemists of the Discworld have invented moving pictures. Many hopefuls are drawn by the siren call of Holy Wood, home of the fledgling "clicks" industry – among them Victor Tugelbend, a dropout from Ankh-Morpork's Unseen University and Theda "Ginger" Withel, a girl "from a little town you never ever heard of", and the Discworld's most infamous salesman, Cut-Me-Own-Throat Dibbler, who introduces commerce to the equation and becomes a successful producer. The business of making movies grows rapidly, and eventually Victor and Ginger become real stars, thanks tothe help of Gaspode the sentient dog. Holy Wood for a while becomes an effervescent place full of humans, dwarfs, alchemists, demons, and trolls all living in harmony. Meanwhile, it gradually becomes clear that the production of movies is having a deleterious effect on the structure of reality. Ginger is possessed by an unspecified entity and she and Victor find an ancient, hidden cinema, complete with portal to the Dungeon Dimensions. Back in Ankh-Morpork, during the first screening of Blown Away which the senior wizards of the Unseen University are also attending, a creature from the Dungeon Dimensions breaks through. Victor fights it, having found out that when a camera points at him he's capable of doing scenes from filmsin real life. However, after the creature is defeated, Victor and the Librarian realise that the creatures will still try to get through from the Dungeon Dimensions and that Ginger in her possessed state was not trying to summon them but trying to keep them from coming through. Returning to the ancient cinema at Holy Wood, Victor and Ginger witness a golden statue of a warrior come to life and travel through the screen to defeat the creatures. In the end most things return to normal, although dwarfs find themselves inexplicably singing "Hihohiho" while mining. Victor and Ginger have a last dialogue over the meaning of Holy Wood and being famous, and Gaspode and the other animals under the influence of Holy Wood lose their ability to reason and speak. The ending lines depict a poetic scene about the fragility of Holy Wood dreams.
