The Vampires

Philippe Guerande (Edouard Mathé), a reporter working for "Le Mondial", and his friend Oscar Mazamette (Marcel Levesque), investigate the muder of Inspector Dural, decapitated by the sinister gang known as the "Vampires". The leader of the gang, the "Great Vampire" (Jean Aymé), is unmasked but manages to escape.

Dancer Marfa Koutiloff (Stacia Napierkowska) tells Guerande she will reveal the secrets of the Vampires, but the Great Vampire kills her with a poisoned ring.

Guerande meets cabaret singer Irma Vep (Musidora); he also attempts to decypher a mysterious notebook he stole from the Vampires.

The Vampires fight another criminal, Moreno (Fernand Herrman), who tries to steal their loot, but Guerande engineers Moreno's arrest.

Moreno fakes death and escapes from jail. Guerande is taken prisoner by the Vampires but escapes as well. The Great Vampire organizes a deadly ball to steal his guest's valuables, but is outwitted by Moreno.

The Vampires are after a treasure in the Forest of Fontainebleau. Moreno hypnotizes Irma Vep into killing the Great Vampire. Then Moreno takes over the gang.

The heretofore unknown Lord of the Vampires, Satanas (Louis Leubas), reveals his existence. He kills Moreno by bombarding the restaurant where he was eating. He then tries to steal the fortune of millionnaire Geo Baldwin (Emile Keppens) but is thwarted by Guerande and Mazamette.

Irma Vep is captured by the Police but Satanas arranges her escape; however he, too, is caught. He kills himself in his jail cell.

Enter the new Lord of the Vampires: Venenos (Frederik Moriss). He tries to poison Guerande but his plot fails.

Guerande finally marries his girl-friend (Louise Lagrange). The Vampires plot against the couple, but are thwarted by Mazamette. The gang is killed or captured.