What's Up Doc?

Trouble seems to follow know-it-all Judy Maxwell wherever she goes. This time it takes the form of Howard Bannister, a musicologist attending a convention where he's competing for a grant that will allow him to study the musical properties of certain igneous rocks. Judy pursues Howard despite his protests, and his overbearing fiancée, Eunice Burns, begins to question his motives. To make matters more confusing, there are four identical plaid overnight cases circulating through the Bristol Hotel: one contains diamonds and jewelry, another holds top-secret government files, a third is filled with Judy’s clothes, and the fourth, Howard’s rocks. As the hotel detective tries to steal the case of jewelry, an agent hunts the man who holds the secret papers, while the last two suitcases naturally find their way into the wrong hands in this caper-of-errors.