This is a call purporting to be from the IRS saying that the IRS is going to sue me. Pro tip: The IRS *never* makes its first contact by telephone. This is well attested on the WhitePages.com site. Impersonating the IRS is a federal crime, so I hope somebody goes after these [***].

Got a recorded message on the answering machine that "the reason for this call is  to inform you that the IRS is suing you, and you need to call immediately for this case file" to the number as stated above.  I feel sorry for the people who might think this is real and actually call them back, and I wonder what the nature of that conversation would be - I assume it would be to get personal info (name, SSN, etc.) for identity theft or some other predatory purposes.