 Monsieur Feydeau has writer s block, and he needs a new play. But he takes an opportunity to observe the upper class of 1900 Paris - Monsieur Boniface with a domineering wife, and the next-door neglectful husband Henri with a beautiful but ignored wife Marcelle. Henri traces architectural anomalies (most ghost sounds are drains), and plans a night at the Hotel Paradiso; but this hotel is the assignation spot of Marcelle and Boniface. One wife, two husbands, a nephew, and the perky Boniface maid, all at this  by the hour  hotel, and consummation of the affair is, to say the least, severely compromised (not the least by a police raid). All of this under Feydeau s eye, and his play is the  success fou  of the next season.