Belphegor, Phantom of the Louvre

Belphegor possesses Lisa after she enters the Louvre at night chasing her runaway cat. While inside, she is struck by an electrical shock from the museum's system, specifically the same electrical network that Belphegor has been inhabiting since escaping the sarcophagus. The electrical shock transfers the stray spirit into Lisa's body, allowing Belphegor to fuse with a living vessel and walk among the living.

Earlier in the film, Belphegor escapes into the museum's electrical system, making this possession possible.

Once Belphegor possesses Lisa, her behavior fundamentally changes. The ancient spirit uses Lisa's body to adopt the Belphegor persona and disguise itself, convincing Lisa that the museum's rare Egyptian treasures rightfully belong to her. The possession overrides Lisa's will, driving her to steal artifacts while believing she is reclaiming what was taken from her in ancient times.

Glenda Spencer's identification of the mummy as the evil Belphegor hints at the malicious intent behind the subsequent thefts.

Belphegor is an ancient Egyptian evil spirit that was sealed inside a sarcophagus brought to the Louvre. Egyptologist Glenda Spencer examines the mummy and identifies it as Belphegor, confirming that the ancient curse has awakened. The spirit is supernatural and powerful, capable of infiltrating electrical systems and possessing human bodies to accomplish its goals.

The film's opening establishes the artifacts as Egyptian and ancient, setting up the mythological threat.

When museum experts use a laser-scanning device to date the sarcophagus, the process disturbs the ancient relic's resting place. The unstable spirit escapes from within the mummy and infiltrates the museum's electrical system, moving through the power network like a phantom. This allows Belphegor to cause disturbances throughout the galleries while remaining invisible to staff.

The laser scanning process is introduced as the method experts use to examine the artifact's age.

Verlac, a renowned detective called out of retirement, approaches the investigation with keen observation and pattern recognition. He interviews staff, examines security footage, and notices that the disturbances exceed ordinary criminal capability. Through lingering staff memories and analyzing the eerie phenomena, he begins to understand how a spirit could fuse with a living body, bridging myth and modern investigation.

His experience and reputation are established when he is specifically recalled for this challenging case.

Curator Bertrand Faussier brings in Egyptologist Glenda Spencer to examine the findings because the artifacts require expert interpretation beyond standard archaeological dating. Spencer's specialized knowledge allows her to identify that the mummy inside the coffin is not merely an ancient corpse but the evil spirit Belphegor itself. Her revelation transforms the investigation from a potential theft case into a supernatural threat.

The curator's decision to call a specialist hints that the artifacts hold unusual significance.

Belphegor's goal appears to be reclaiming what the spirit considers rightfully theirs from ancient times. When possessing Lisa, the ancient identity takes over andLisa believes the museum's rare Egyptian treasures rightfully belong to her. The possession drives a psychological hunger to retrieve artifacts that were taken from Egypt centuries ago, treating the heist as reclamation rather than theft.

The possession marks a turning point where ancient identity begins influencing modern actions.

Lisa lives across the street from the Louvre. One night, her cat runs away and escapes into the museum. She pursues the cat inside after closing time, which places her inside the building during the exact moment when Belphegor's electrical presence is at its strongest. This incidental but crucial intrusion sets the stage for the possession.

Lisa's residence across the street establishes her proximity to the museum.

Belphegor proves more than a match for the museum's guards and security systems because the spirit can manipulate the electrical infrastructure from within. Using Lisa's body, Belphegor anticipates security moves, disables alarms, and vanishes with treasures in seemingly impossible ways. The combination of supernatural power and human vessel creates a foe that understands both modern technology and ancient trickery.

The spirit's early infiltration of the electrical system establishes this advantage.

The summary indicates that Lisa remains possessed by Belphegor as the story continues. The museum still faces disappearances and Belphegor's presence persists through Lisa's body. Detective Verlac remains on the case, pursuing the truth behind the spectral intruder. The film leaves the resolution unresolved, with Lisa's fate and Belphegor's ultimate goal remaining open-ended.

The ongoing pursuit between Verlac and the possessed Lisa establishes this as an ongoing conflict.