Opportunity Knocks plot
"In a world of cons... Eddie's a pro."
Eddie and Lou, two crooks, are on the run from their creditor. While they are hiding in someone's house, they hear on the answering machine that the owner of the house has been out of the country for a few months and that the person who had to look after the house has also taken another job. As a result, they think they have the house to themselves, but at a certain point some of the owner's friends come to visit. Eddie then has the brilliant idea to introduce himself as the one who looks after the house.