[4] Hayworth's singing voice is dubbed by Jo Ann Greer, who later also sang for her in Miss Sadie Thompson and Pal Joey.

One night after her performance she receives news from Inspector Smythe and Anderson, a member of the American consulate, that her husband Neil has been found dead.

Initially, the police conclude that Neil committed suicide based on his gunshot wound and the discovery of a pistol at the crime scene, but on further investigation, they believe that he was murdered.

Thus, Neil could have been murdered because of his involvement in Fabian's latest project to allow Nazis to launch rockets from Trinidad to attack the United States.

At a party at Fabian's estate, Steve recognizes Walters as a man who sat next to him on his flight to Trinidad and became agitated at the mention of his brother's name.

In a contemporary review for The New York Times, critic Bosley Crowther panned the film as "as apparent and monotonous as a phonograph record on which the needle is stuck before it has traveled half the distance of the hour and forty minutes that it runs."