A series of murders in Michigan lead an American secret agent to Amsterdam, where he uncovers a plot to imperil the world with a potent new drug.

• Gloria Film
• Les Films Borderie
• Ray Danton
• Marisa Mell
• Margaret Lee
• Jess Hahn
• Carlo D'Angelo
• Adriana Ambesi
• Marco Guglielmi
• Solvi Stübing