Newlywed American heiress Kit Preston is living with her financier husband Tony on Grosvenor Square in London. Returning home in a dense fog, she is startled by an eerie, electronic-like voice threatening to kill her within the month. The voice calls her by name and torments her as she runs to escape.

• Midnight Lace
• David Miller
• Doris Day
• Rex Harrison
• John Gavin
• Universal International Pictures (UI)
• Arwin Productions