Rotten Smell 5 days in

[Thea]

Even with the long list of violations you yourself have admitted to, you should not have a rotten smell at five days IF aging in a a regularly used modern frost free kitchen refrigerator located in a room temperature environment
If, however, you are going Cowabunga with your refrigerator set up, any bacteria or mold that the butcher introduced could go awry quickly in less than optimal refrigerator conditions.