On his death bed, Minneapolis private investigator Lyle Dahms's father—a retired suburban police patrolman—asks his son to reach out to a dark figure from their shared past. Despite his reservations, Dahms feels he cannot refuse. But the visit sets off a chain reaction that will expose long-buried family secrets and provoke dangerous enemies. As threats mount, Dahms must protect not only his family, but that of his dad's former partner—a man he is not sure he can trust.