Savannah Lanier is faced with a mystery. Strange accidents occur on the company premises again and again. Can they really blame the activists, who have been sending threatening letters to the business management for years?

But the police don't see any need for action yet, as there is no evidence of foul play - not even when another accident occurs in which, for the first time, human lives are in danger.

Savannah, never the less, is sure she can handle the situation - which makes her all the more upset when her boss, Raymond Blackborne, sends her to Washington to hire Jake Forester.

But Jake refuses the job. He didn't spend eight years leading his company, the Guardian Angels, to success, in order to put it at risk now. Especially not for a man like Blackborne, with whom he never wanted to have anything to do with again. But when Raymond begs Jake to take the case, neither suspects that the past has long caught up with them and that the consequences are deadly.