Four separate cases, four young girls. All of whom go missing in the early to mid-1970s, all within miles from one another in neighboring New England towns. And not one arrest has been made in over 50 years. In Paper Ghosts, investigative journalist and true crime author M. William Phelps’ decade-long search for answers is reignited when a call reveals new information that sets the investigation in motion, uncovering never-made-public documents and bringing forth new witnesses and suspects.