Demented Death Farm Massacre (1971)
Producer Fred Olen Ray bought the footage and rights to an obscure limited released film called Shantytown Honeymoon. He then shot several new scenes with John Carradine as the Judge of Hell and got the film a limited theatrical release.
In the film we meet a group of jewel thieves on the run trying to keep a low profile after stealing over a million dollars worth of gems. Unfortunately they run out of fuel in the middle of the countryside.
This results in them wandering into a backwoods farm, hoping to hide out for the time being. However, when the farmer returns home only to find the thieves taking over the house, he hatches a deadly plan…