I got 3 calls from this number within a 2.5 hour period and got 3 messages.  Caller had my married name (now divorced and not legally that name) and said that his client had filed a law suit against me.  The # he wanted me to call back is in Chicago and all I could find out was it was a landline 312-912-7816.  Said I had to call him back or this would go to court and "nothing could save me".  Kind of freaked me out - there's nothing I could be sued for - but the mystery of it is unsettling.