 The film's sets were designed by the art director Nicolai Remisoff.Sandra Carpenter (Lucille Ball) is an American who came to London to perform in a show, but now is working as a taxi dancer.She is upset to find out that friend and fellow dancer Lucy Barnard (Tanis Chandler) is missing and believed to be the latest victim of the notorious "Poet Killer," who lures victims with ads in newspapers' personal columns and sends poems to taunt the police.