An aide at the American Embassy in London finds himself involved with both Scotland Yard and the French police over the kidnapping of the son of a Mafia boss who has spilled the beans back in the States.
| Actor | Role |
|---|---|
 Robert HuttonCalvin Adams | Calvin Adams |
 Reginald MarshInspector Webb | Inspector Webb |
| UUrsula HowellsMme. Perrault | Mme. Perrault |
 Alex ScottHenri Perrault | Henri Perrault |
 Eric PohlmannInspector Bressin | Inspector Bressin |
 Patricia HayesPlane Passenger | Plane Passenger |
 Warren MitchellO'Leary | O'Leary |
 Aleta MorrisonSpeciality Dancer | Speciality Dancer |
| SSusan DennyCarole Linden | Carole Linden |
 Robert AyresAngelo Di Marco | Angelo Di Marco |
 Larry CrossJournalist | Journalist |