Donald writes a story for Newsview magazine about Ann's eccentric neighbor; the issue that the article appears in has the same exact cover (a picture of a NY bridge) as a later episode in which he writes a magazine profile of Ann (All About Ann).
The title is based upon the novel The Phantom of the Opera by Gaston Leroux, which has been used for many plays, movies, musicals and operas.
There is an error in the the credits for this episode. The attorney, Vernon Lyons, is actually played by actor John Newton