17 Ghosts

Marshall had just moved to Westerville, Ohio, and is helping his family unpack all of their belongings. In the basement, he discovers a manilla folder with a yearbook from 1973 and 17 names circled inside. After his discovery, he realizes that his family can no longer see or hear him. In fact, it was as if he had never existed in the first place. Was he dead? Who were those people?