The irony of John Robie
John Robie is depicted as a courteous reformed jewel thief. Before reforming, the author indicates that John was a wanted criminal all over Europe. Ironically, John just blinded people that he had reformed because the police were looking for him everywhere after few days. It is also sardonic that after the police catch up with John, he mysteriously eludes.
The satire of Bertani’s Restaurant
Bartani is the former French resistant who worked closely with John Robie. Now Bartani claims that he is reformed and is involved in entrepreneurship. Ironically, all the employees in Bartani’s restaurant are ex-cons! The reader expects Bartani to be more sensitive and interact with civil people who have never got involved in a crime. However, the decision of Bartani to only employ former thieves is entirely satirical.
Frances’ satire
The first time Frances meets Robie, he does not know that she knows his real identity. Robie disguises himself as Conrad Burns and lures Frances into sexual relations. Robie is sure that Frances will never know his true identity. Ironically, Frances confesses that she knows his true identity, and she wants to join him in crime.
The stealing of Frances’ mother’s jewels
Robie is a smart jewel thief, and he is leaving no evidence to track his whereabouts. When Frances falls in love with Robie, she does not suspect that he can harm her or her family. Ironically, Frances later realizes that her mother's jewels were stolen and suspects Robie immediately. She confronts Robie and commands him to return the jewels. However, Robie denies the accusation. Frances decides to call the police, and this prompts Robie to run away for his safety.
The irony of the Cat
The Cat is the name given to the notorious and smart jewels thief. Robie held that title for a while, but he later reformed. The next Cat operates in disguise, and the police still believe that Robie is the Cat. Ironically, the truth is later revealed that the new Cat in town is Danielle, Foussard’s daughter.