The Vampires or, The Arch Criminals of Paris S01 E03 The Red Cryptogram

While faking illness to get off work, Philippe tries to decode a red booklet that he lifted from the Grand Inquisitor's body, which contains the crimes of the Vampires. He discovers that his house is under surveillance by the Vampires, so he leaves in disguise. Following clues in the booklet he arrives at "The Howling Cat" night club. Performing there is Irma Vep (Musidora), whose name Philippe sees is an anagram for vampire. Then....