Left a message stating that legal action was being taken against me and that I better call back or else.  Scam.

They left a computerized vm saying IRS and legal action would be taken if i did not call back. So maybe the real IRS should do something about these scammers!

The problem is that the vast majority of these scam calls are coming from overseas and that makes impossible to take any kind of action against them unless the country of origin is willing to get involved.

said it was the IRS and I was in trouble.