In the autumn of 1973, Willie Steelman and Douglas Gretzler embarked on a murderous drug-fueled rampage across Arizona and California. Steelman was little more than a petty thief, an addict, a dreamer, never able to unleash the man he thought himself to be, but that changed earlier that summer when he met Gretzler. And it was in that Denver, Colorado crash pad where they formed a pact, a third person, created out of their collective souls, someone capable of the unthinkable, together achieving what neither could ever imagine doing on his own. Authorities were soon following the trail of their...