Free-lance undercover agent Coplan receives a phone call from an old girlfriend in Turkey. The panic-stricken woman gives sketchy details of a plot that threatens world security. When Coplan arrives, he is told the woman has been killed, and the trail of the murderer leads to her mad-scientist brother.
Claudio Brook , Margaret Lee , Klaus Kinski , Jean Servais , Jean Topart , Bernard Blier , Hans Meyer , Roger Lumont , Andrea Aureli
Comptoir Français du Film Production (CFFP)
