A foolish but devious thief spends his time stealing portraits of rich families and selling them to the highest bidder. But a woman investigator knows how to trap him and teach him a lesson. One day, the thief breaks into an aristocrat's house but is surprised by the investigator. She has just taken his picture and stolen his own portrait !

Un brigand idiot mais sournois passe son temps à voler les portraits de familles riches qu'il revend au plus offrant. Mais une enquêtrice sait comment le piéger et lui donner une bonne leçon. Un jour, le voleur s'introduit chez un aristocrate mais il se fait surprendre par l'enquêtrice. Elle vient de le prendre en photo et de lui voler son propre portrait !