Bernice "Bernie" Rhodenbarr is a burglar by trade, and she runs a bookstore as well. Her friend Carl Hefler is a dog groomer. After a successful burglary, it's discovered that a dead body was in the house she burgled. As she's the only one who can be placed at the scene of the crime, she has to use her criminal skills to clear her name of the murder AND avoid getting charged with the burglary.

Arthur is a happy drunk with no pretensions at any ambition. He is also the heir to a vast fortune which he is told will only be his if he marries Susan. He does not love Susan, but she will make something of him the family expects. Arthur proposes but then meets a girl with no money who he could easily fall in love with.