That evening, the Grand Vampire holds a party, in disguise as Baron de Mortesalgues, for his niece, Irma in disguise, which attracts many members of the Parisian aristocracy.
That evening, the Grand Vampire holds a party. This is in disguise as Baron de Mortesalgues Irma in disguise. This is for his niece. A party for his niece attracts many members of the Parisian aristocracy. This is in disguise as Baron de Mortesalgues. Irma in disguise is his niece.