The Haunting of L.

When Peter Duvett accepts a position as an assistant to the elusive portraitist Vienna Linn, his life is forever changed as he follows him on a macabre trek across Canada photographing grisly accidents for a private collector, a journey that leads to his employer's wife, who introduces him to the dark world of "spirit pictures"--photographs in which the faces of the long-dead mysteriously appear along with other horrifying images.