Solange Pradel

After a psychoanalyst unsuccessfully tries to convince four sisters that they are not 200-year-old vampires, the Queen of the Vampires promulgates the cause of the Undead.

Paris, 1960s. Murders disrupt peace. Prostitute Hélène executed March 22, 1968, killings resume. Executioner Louis linked to investigating officer. Louis suspected of ties to murderer, his identity scrutinized.