In the middle of the night, on a winding road in a suburb outside of Washington D.C., a homeless veteran is killed in a hit-and-run—a tragedy that barely catches the attention of the media and police.

Days later, John Mahoney, the former Speaker of the House, is confronted by Diane Lake, an ex-CIA agent turned political researcher with a knack for digging up unsavory intelligence on some of D.C.’s biggest players. Diane is there with a gift for Mahoney: the news that Lydia Chang, the wife of one of his biggest rivals, might be working undercover as a Chinese agent.

Knowing it’s too early to get the FBI involved, Mahoney does the only thing left to do. He calls in Joe DeMarco.

DeMarco might not have the title of political researcher, but he’s no stranger to digging up dirt either. As DeMarco starts his investigation, he soon learns there’s a lot more going on than Mahoney suspected, and instead of answers, all he finds are more questions. Who’s the mysterious man Lydia Chang has been meeting in the park? Does Diane Lake have an ulterior motive? And why does everything point back to a random hit-and-run?