So far, hundreds of experts have spent their entire life trying to decrypt the history of Paris. Lots of stories and rumors have remained unproved. Paris has been keeping its mysteries for centuries. Some arouse fascination and others spark fantasy. Facts, similarities and reliable witnesses, prove the occurrence of these events. In the coming 6 episodes, scientific and historical investigations are going to unveil the darkest secrets of the City of Lights. Here is the city of Paris like you have never seen it before.