The Borisov Dilemma

When ex-CIA operative Damon Courter is called back to help interrogate one of his old Russian contacts, he gets more than he bargained for. The contact is an imposter, his ex-wife is also on the case, and she wants to reunite with him. They discover a Russian plot to identify the Israeli agent within the Iranian nuclear program, an assassin who is to eliminate anyone who might derail the Russian plot.