The Extraordinary Adventures of Adèle Blanc-Sec

A laboratory accident by Professor Espérandieu hatches a 135-million-year-old pterosaur egg inside the National Museum of Natural History in Paris. The hatch unleashes a wave of eerie sightings and foreboding events around the city. This event foreshadows the threat the beast will pose and sets the mystery in motion.

A former prefect dies after sharing a taxi with a Moulin Rouge showgirl, a tragedy witnessed only by a drunken passerby. The dying man’s death is investigated and tentatively linked to the pterosaur phenomenon. The city reels as investigators scramble to understand the rising threat.

The President orders urgent handling of the case, and control falls to Inspector Caponi. Caponi, a seasoned yet bumbling investigator, is tasked with taming the escalating crisis. His bureaucratic hurdles complicate the hunt for the beast.

Adèle Blanc-Sec returns from Egypt carrying a mission to revive the mummy so her sister Agathe can be saved from a coma. She confronts Professor Dieuleveult and retrieves the mummy before heading home. Her quest links ancient science to the modern chaos in Paris.

Espérandieu is confined to death row, blamed for the pterosaur attacks, while authorities struggle to stop the beast. The case hinges on a mysterious creature terrorizing the city rather than a mere human culprit. The situation intertwines Espérandieu’s fate with the unfolding supernatural mystery.

Andrej Zborowski, a researcher at the Jardin des Plantes, is drawn to Adèle and helps lure the creature into hiding. His scientific perspective adds a layer of cooperation amid the turmoil. The alliance hints at a possible path to controlling the beast.

Adèle, riding the pterosaur, rescues Espérandieu moments before his execution. The rescue transforms Espérandieu from a prisoner into a renewed participant in the night’s events. The improbable act links Adèle’s quest to Espérandieu’s survival.

Saint-Hubert shoots at the pterosaur, and the wound echoes Espérandieu’s own fate. The blast proves fatal to the creature and paradoxically frees Espérandieu to revive the mummy. This pivotal moment collapses the line between hunter and hunted.

The mummy reveals itself to be the Pharaoh’s physicist and accompanies Adèle to the Louvre. There, the Pharaoh’s mummified court is revived on display, blending ancient science with modern spectacle. The revived court astonishes visitors and deepens the mystery surrounding Adèle’s mission.

The Pharaoh’s doctor uses his advanced medical knowledge to revive Agathe, though he cannot heal her fully at first. He then expresses a desire to see Paris, and the revived court wanders the city at night, unnervingly charming and frightening onlookers like Choupard. The city becomes a stage for a nocturnal phantasmagoria.

With the immediate danger abated, Adèle decides to take a vacation and boards a ship. The film reveals the name RMS Titanic in a cheeky twist as Dieuleveult makes a wry farewell: 'good journey.' The chase fades into a calm, almost whimsical end that contrasts with the earlier chaos.

In a mid-credits scene, Professeur Ménard pursues Saint-Hubert with a rifle, outraged by the pterosaur’s fate. Caponi arrests Ménard as two gorillas watch the exchange, leaving the fate of the mystery unsettled. The scene leaves a lingering note of unresolved tension.