Who is the mysterious woman seen running from a swank Palm Beach hotel, clad in only a bath towel? Is she the secret mistress of a New York publishing baron, who is subsequently found deceased in bed?

Dean Martin and Shirley MacLaine square off in All in A Night's Work, a frothy, zany romp directed by Joseph Anthony (The Rainmaker) and also starring Cliff Robertson, Charlie Ruggles, Jack Weston, Gale Gordon and Jerome Cowan. MacLaine is Katie, the mystery woman who has the publishing company's board of directors nervously hoping to avoid a headline-making scandal at all costs. And Martin is the heir to his uncle's vast empire who decides to woo the young lass in an attempt to determine just who she is, and what she wants. One-liners fly, hijinxs ensue - and love blossoms - in this delightful romantic comedy.