Clifton Webb has the role of a lifetime as Lynn Belvedere, self-styled genius and expert on everything. Belvedere accepts the job of baby-sitting the troublesome children of Robert Young and Maureen O'Hara; he wins the job by calmly dumping a bowl of cold oatmeal on the head of the couple's most contentious offspring! At first the family chafes at Belvedere's imperiousness and unlimited resourcefulness, but gradually everyone--especially the children--grow quite fond of the man. The couple's snoopy neighbor (Richard Haydn), noting that Belvedere spends quite a lot of time in the house when the husband is away, begins spreading rumors of a clandestine affair. Belvedere only fuels the flames of innuendo by working on a "secret project" in his room. That project turns out to be a book about the community where he is staying, a revealing volume that exposes the pettiness and hypocrisy of several respectable citizens. Robert Young nearly loses his job over the ensuing scandal, but when the community becomes world famous and the object of increased business activity, Belvedere is the hero of the day. Clifton Webb made so vivid an impression as Mr. Belvedere that he repeated the role in two sequels, and played variations of Belvedere (with emphasis on his "child psychology" tactics) in such films as and . After numerous failed attempts at launching a TV series based on the Gwen Davenport-created character, settled into a long video run in 1985, with Christopher Hewett in the title role and sportscaster Bob Uecker as Belvedere's nonplused employer.