Spies from several countries try to find out what secrets are hidden in the mind of a young amnesiac girl who has appeared in Paris.

• Les Films Copernic
• Clesi Cinematografica
• Mireille Darc
• Claudio Brook
• Edward G. Robinson
• Giorgia Moll
• Pascale Roberts
• Anne-Marie Blanc
• Hellmut Lange
• Werner Schwier