The film stars Olivia Bonamy, Adrià Collado, Jeffrey Ribier, Laurent Spielvogel, Valentina Vargas, Julien Boisselier, and Thylda Barès.

The film itself is a mix of horror, action, and comedy in a style highly reminiscent of American television shows such as Buffy the Vampire Slayer and Xena: Warrior Princess.

Tracking the kidnappers to a pocket dimension containing an entire village that had vanished off the map several years earlier, Mallory and her team are joined by Père Carras (Collado), a priest trained in the martial arts and one of the bodyguards present at the time of the pope's kidnapping.

Their search for the pope eventually leads to Lady Valentine (Vargas), a centuries-old vampire who survived being beheaded during the French Revolution, and her mission to summon Abaddon, a fallen angel that will cover the world in darkness.

The Necronomicon, a work featured in the horror fiction of H. P. Lovecraft, is referenced several times as if it were a legal document, including the citing of paragraphs and sub-sections relating to the conditions of summoning a demon.