Tom Welles (Nicolas Cage) is a family man with a modest home-based private investigation business living a simple life in Pennsylvania-until a reel of crudely shot eight millimeter film sends him down a gritty and frightening path into society's darkest corners. From the lurid sidewalks of L.A.'s Hollywood Boulevard to the squalor of New York City's meat-packing district, Welles relentlessly pursues a bizarre trail of graphic and disturbing evidence to determine the fate of a complete stranger-a girl who begins to haunt his imagination and conscience. Aided in his obsession by the streetwise Max (Joaquin Phoenix), Welles drifts away from his wife (Catherine Keener), family and former life. In the provocative thriller EIGHT MILLIMETER, Welles enters a world beyond his wildest dreams and worst nightmares as he comes to realize how deadly a small reel of eight millimeter film can be...