When nemesis Nick Machiavelli targets her family with frivolous legal claims and slander that escalate to an unthinkable tragedy, Mary DiNunzio discovers her own unsettling capacity for dark retaliation.

An epic battle of wills and legal strategy ensues when DiNunzio and Rosato represent opposing sides in a wrongful termination lawsuit, triggering conflict-of-interest complications that estrange the partners and force their friends and colleagues to take sides.