Vlassov is a Soviet spy who defects in France. He is whisked to the U.S, where Allan Davies takes over the case. After polygraph tests and cross-examinations, Vlassov names several Western European agents who are also spying for the Soviets. Davies wants to take the listed agents into custody; meanwhile, those on the list start dying under mysterious circumstances.
as Col. Alexi Vlassov
as Alan Davies
as Philip Boyle
as Mrs. Annabel Lee
as Polygraph interrogator
as Computer Programming Director
as Lucien Berthon
as Tavel
as Lepke
as Deval
as Suzanne
as Kate Cross
as French Diplomat
as Mercadier
as inspecteur Joss
as Jeannine Santelli
as Gardener
as Mrs von Strelitz
as Lefèvre
as Debecourt
as Tatiana Vlassov
as Narrator (voice) (uncredited)
