A British man is hunted by British and German spies when he tries to sell blueprints.
Carl Beyersdorf / Ted Healey
Freyda Healey
Marie Dufreyne
Beverley Blake
Det. Insp. William Barnard
Det. Sgt. Trotter
Otto Lemnel
Florrie McGowan
Yorkie Meane
Toni Vencini
Mabel
Hawker
Commander Anderson
Sir John
Hubert Kessler
Sammy
Dancer
And His West Indian Band
German Ambassador