Opportunity Knocks is a 1990 comedy film starring Dana Carvey. It was directed by Donald Petrie.
Con men Eddie Farrel (Carvey) and Lou Pesquino (Todd Graff) need cash fast and pretend to be repair men sent to fix a gas leak. The con fails, but they escape.
Eddie and Lou find an empty house that they decide to burglarize. When they learn from a message on the answering machine that the owner is out of the country and the man who was going to house-sit can't make it, they spend the night.
The next day, Eddie and Lou are on the run from thugs sent by local gangster Sal Nichols (James Tolkan), to whom they owe money. After they find themselves separated, Eddie takes refuge in the empty house.
In the morning, Eddie walks out of the shower and meets Mona Malkin (Doris Belack), whose son owns the house. She assumes Eddie is her son's friend Jonathan Albertson, the one supposed to house-sit. Eddie plays along, meeting Mona's businessman husband Milt (Robert Loggia), who offers him a job....