In providing the "synopsis" for Are Husbands Necessary?, one best-selling film source says merely "And what about this film?" There's more to the story than that, of course--but not much. The film was based on {-Mr. and Mrs. Cugat}, a novel by Frank Davis. Ray Milland and Betty Field play a warring married couple who hope to patch up their differences by adopting a baby. When Milland's ex-flame Patricia Morrison shows up unexpectedly, the fur flies.