Place Vendôme (S01E05)

In a parking lot at Place Vendôme, firefighters discover the burnt remains of Philip Roquin, an accountant working for one of the area's jewelry shops. His wife confesses that he had been abducted and a ransom was demanded. This revelation sends Jo Saint-Clair on a trail that takes her to a prison, where she learns about a woman named Lisette who was serving time there.