A brilliant scientist who has lost his memory is hunted by Communist agents out to obtain a secret formula.
as Ivan Mason / Dr. James Paxton
as Rhona Ellison
as Prof. Cattrell
as Nurse Mitzi
as Dr. Manning
as Scotland Yard Supt. Davidson
as Dr. Kelly
as Medwood Inspector Hayman
as Dmitri Balinkev
as Ambulance Driver
as George White - the Gamekeeper
as Mrs. Lemmin - the Landlady
