A mysterious man (Louis Leubas) arrives at Moréno’s home, and shows that he knows that the Grand Vampire’s body is inside a trunk. Moréno tries to get rid of him, but he is paralysed by a pin in the man’s glove. The man reveals himself to be the true Grand Vampire, Satanas, and that the first was a subordinate. While at a cabaret called the “Happy Shack”, Moréno and Irma receive a note from Satanas saying they will see proof of his power at two o’clock. At two he fires a powerful cannon at the “Happy Shack”, largely destroying it. Meanwhile, Philippe decides to visit Mazamette, but he is out “chasing the girls.” He hides as Mazamette arrives home, drunk, with two women and a friend, who he later chases out angrily at gunpoint. The next morning, Irma and Moréno go to Satanas’ home to surrender, and Satanas offers them the chance to work with him, informing them that American millionaire George Baldwin is stopping at the Park Hotel. Satanas wants Baldwin’s signature. One of Moréno’s accomplices, Lily Flower (Suzanne Delvé), goes to the Park Hotel and poses as an interviewer from “Modern Woman” magazine and through trickery gets Baldwin to sign a blank piece of paper. Afterwards, Irma enters and dupes Baldwin into recording his voice saying “Parisian women are the most charming I’ve ever seen, all right!” Lily Flower brings Baldwin’s signature to Moréno’s home, and Moréno writes out an order (over Baldwin’s signature) to pay Lily Flower $100,000. Moréno’s gang seize the hotel telephone operator of Baldwin’s hotel; Irma takes her place by using a forged note. When the bank cashier calls Baldwin to confirm that he has given a very large draft to an attractive Parisian woman, Irma intercepts the call, and plays the recording she made of Baldwin’s voice, and the cashier is persuaded. While Lily Flower is taking the money, Mazamette comes in, recognising her as his old squeeze from the “Happy Shack”, and follows her, seeing her hand the money to a man in a taxi – Moréno! Moréno gives Satanas the money, but he is given it back as a present. Philippe and Mazamette capture Lily Flower at her home and make her call Moréno and tell him to come, but when he and Irma arrive they fall into a trap and are caught by the police.