Armas secretas
Frances es una reputada entomóloga que, debido a sus grandes conocimientos sobre virus y bacterias, es requerida por el servicio secreto británico para realizar una peligrosa misión. Debe viajar a un país imaginario de los Balcanes e investigar un nuevo tipo de armas bacteriológicas que supuestamente está desarrollando el enemigo.
Dirección Roy Ward Baker
Reparto
Michael Hordern
Lab Director Owens
Patric Doonan
Customs Man
Anthony Newley
Operator (uncredited)
Olaf Pooley
Detective-Interrogator
Jill Balcon
Wardress (uncredited)
Emile Stemmler
Soldier at Station Checkpoint (uncredited)
Naunton Wayne
Mr. Hedgerley
Gladys Henson
Attendant
Paul Hardtmuth
Priest
George Benson
Sandwich Stand Customer
Philo Hauser
Waiter (uncredited)
Ewen Solon
Enemy Scientist (uncredited)
Noel Johnson
Frank Conway (uncredited)
Dane Clark
Bill Casey
Marius Goring
Commandant Anton Razinski
Eugene Deckers
Alf
John Horsley
Customs Officer
Anton Diffring
Officer at Station (uncredited)
Sam Kydd
Customs Man (uncredited)
Richard Marner
Soldier on Train (uncredited)
Ernest Butcher
Tom - Lab Assistant (uncredited)
John G. Heller
Soldier at Station Check Point (uncredited)
Dinah Sheridan
Train Passenger at Checkpoint (uncredited)
Margaret Lockwood
Frances Gray
Eric Pohlmann
Joe - the bartender
John Gabriel
Night Field Telephone Officer (uncredited)
Wilfrid Hyde-White
Mr. Luke