After his business partner Otto vanishes with the company’s funds, Roman Tarski tells his wife Stefie he must work secretly by night as a waiter at the club “Alhambra.” Stefie grows suspicious of his exhaustion and odd behavior, and when she finds him drunk with the maid Kazia and her fiancé Walery, she enlists Baron Carolescu’s help to expose Roman’s deception and uncover the truth about the missing money.