Rigby Reardon is a private investigator. Juliet Forrest asks him to investigate the death of her father. Rigby finds a list headed “Enemies of Carlotta” and starts to investigate. It soon becomes apparent that the people on the list are being killed. While falling in love with Juliet, Rigby follows leads and finally discovers that Carlotta is an island off Peru. He goes there to find Juliet’s father being held by a band of Nazis determined to use Dr. Forrest’s cheese mold to destroy the United States. Rigby stops him before anything is destroyed except for Terre Haute, Indiana, which is a shame because they were just about to get a public library.

• This was legendary Costume Designer Edith Head's final film. There is a tribute to her in the closing credits denoting this. Fittingly, the film features many of her earlier designs in cleverly edited clips from old movies.

• Performers who appear in this film in footage from earlier classic movies include: Edward Arnold, Ingrid Bergman, Humphrey Bogart, Wally Brown, James Cagney, William Conrad, Jeff Corey, Joan Crawford, Bette Davis, Brian Donlevy, Kirk Douglas, Ava Gardner, Cary Grant, Alan Ladd, Veronica Lake, Charles Laughton, Fred MacMurray, Charles McGraw, Ray Milland, Edmond O'Brien, Vincent Price, Barbara Stanwyck and Lana Turner.

• The Car accident at the beginning of the movie (the fake killing of the scientist) is taken from Keeper of the Flame (1942).

The plot is almost incomprehensible, but it doesn’t matter. Martin is funny, Rachel Ward is beautiful and the device of using old movies is done incredibly well. Not only does the dialogue meld together, but so does the music and lighting.