Thierry de Brem

Adrien is a journalist specialised on the "strange". He is asked to interview a man who is said to know succubi. He meets a woman at the cemetery's entrance who offers him a ring which had belonged to Casanova and has magic powers which enable the journalist to make his fantasies come to reality. But he must sell this ring within seven days for fear of a terrible death

Paris, France, 1942, during the Nazi occupation. Robert Klein, a successful art dealer who benefits from the misfortunes of those who are ruthlessly persecuted, discovers by chance that there is another Robert Klein, apparently a Jewish man; someone with whom he could be mistakenly identified, something dangerous in such harsh times.