Scam call pretending to be the IRS. They claim that you are being sued by the IRS and to immediately call their office. They will try to get you to use Green Dot or Western Union to send money to the scammers. Don't fall for it! These people are committing a federal crime by impersonating the IRS. If they contact you, file a complaint. https://www.irs.gov/uac/report-phishing