Vouloir, C'est Pouvoir

The final scenes were filmed in the Paris Catacombs, which is a massive underground ossuary built beneath Paris that holds the remains of more than six million people, many of them plague victims. The catacombs were built using old mine tunnels beneath the city, construction on them began in 1774 because of the city's overflowing cemeteries. France experienced several major plagues between the 14th & 18th centuries killing an estimated 1.2 million (some estimates are as high as 2 million) people, this on top of the normal deaths had completely filled up Paris' cemeteries by the mid 18th century. As there were thousands of miles of mine shafts located beneath the city and surrounding area, most no longer being used, it was decided to move the remains of the city's cemeteries down into the tunnels. The catacombs continued to be renovated and expanded over the centuries, they were first opened to public visitation in 1874, and were even used by the French resistance to both hide from and conduct sneak attacks against the Nazi's occupying Paris during World War II. As of 2024 the catacomb tunnels are estimated to be around 200 miles long and tours of the catacombs are still offered; though these are guided tours as many of the tunnels are off limits for safety reasons and to prevent people from getting lost in the catacomb's labyrinth-like tunnels. Despite the many rumors of the catacombs being dangerous (some of the closed tunnels are indeed hazardous) and one of the most haunted places on Earth there has actually only been one confirmed death in the catacombs, and that was clear back in 1793 before they were even open to the public, a member of a work detail became lost after his torch went out and died from dehydration and exposure.

During the opening credits when Stephane is talking at the table you can see under his bandage that his eye is perfectly normal. Later in the show when he removes the bandage the eye is scarred over.