Two for the Money(1971)

Joey and Earlene return to the desert to retrieve their buried loot, only to find that a new home has been built on top of the spot they buried it. The homeowners are a young married couple, and when the husband leaves for work one morning Joey, Earlene and an accomplice break into the house in order to dig through the floor to get their money, tying up the helpless young wife. However, the wife turns out not to be quite as "helpless" as she seems.