Actor: Doris Day, Rex Harrison, John Gavin, Myrna Loy
In London, the American futile housewife Katherine "Kit" Preston has been married for three months with the American executive Anthony "Tony" Preston. In a foggy day, while walking in a park, Kit is threatened by a voice that tells that she will be murdered by the end of the month. On the next day, Kit receives a phone call from the stalker and she goes with Tony to the Scotland Yard, but Inspector Byrnes believes that Kit is making-up the story to get more attention from Tony. Kit welcomes her Aunt Bea but only she receives the phone calls. Would Kit be losing her mind?