As Graves drives home for the day, his truck's tires crunch along the gravel road. Though he's driven down this road hundreds of times, he goes slowly, watching for any signs of roaming wildlife. He’s often come close to hitting a crossing coyote or deer, so he doesn’t want to risk it. Unexpectedly, the headlights of his truck show something unfamiliar near the side of the road. Assuming it’s roadkill, he slows down to get a closer look, seeing streaks of blood on the road's gravel...