The Marquise de Langrune invites her friends at her castle in Beaulieu. Among them is Lord Beltham who also came to bring her a significant sum of money. The mysterious Fantômas kills the Marquise during the night. Inspector Juve is sent on his trail.
as L'inspecteur de police Paul Juve - l'ennemi juré de Fantômas
as Lady Beltham - la maîtresse et complice de Fantômas
as Lord Beltham - le mari de Lady Beltham
as Charles Rambert, le neveu de la baronne
as La princesse Sonia Danidoff
as Le président Jean-Marie Bonnet - un magistrat
as L'abbé Sicot - un invité de la marquise
as Firmin - le valet de la marquise
as Fantômas le prince du mal / Görn / Etienne Rambert