Bigwig Hollywood producer Joe Mulholland (Walter Matthau) finds himself in way over his head when, in an attempt to fulfill a promise he made to a dying friend, sets out to make a movie adaptation of a markedly uncinematic sex manual called Love in Sex. Charles Grodin, who also writes and produces this satire, co-stars as Herb Derman, the screenwriter cursed with the near-impossible job of turning the book into a screen-worthy tale.