When another 50 year old woman is found dead in her home in a wealthy suburb - the second such victim in just two months - the FBI is stumped. They must turn to their most brilliant mind - retired FBI agent Kate Wise, 55 - to come back to the line of duty and solve it.
What do these two empty nesters have in common? Were they targeted?
How long until this serial killer strikes again?
And is Kate, though past her prime, still able to solve cases that no one else can?