Duet is an American sitcom that aired on Fox from April 19, 1987, to August 20, 1989. Originally, the story centered on the romance of a novelist (Matthew Laurance) and a caterer (Mary Page Keller), but gradually the focus shifted to their yuppie friends (Chris Lemmon, Alison LaPlaca) and the show was rebranded as Open House. The series was created by Ruth Bennett and Susan Seeger, and was produced by Paramount Television.