In 1917, a French deserter entered the service of German counterintelligence, but Villard (number 33) was a real French spy. Discovered, he is saved by a German spy who betrays her country for love.

André Luguetas André Cartault et François Villard
Edwige Feuillèreas Helena Schweringen
Abel Tarrideas le général Schultz
Camille Bertas le commandant Denain
Mona Dolas Mme Cartault
Marcel Barenceyas le commandant Kunstle
Fernand Maillyas Holtzer