Grave Walkers begins in black and white on a Halloween night. We see Deputy Hancock (Charlotte Amoia from How I Met Your Mother, NCIS: New Orleans and Adrenaline) having to put an injured stag out of its misery. Hancock gets called to a nearby incident, because of the date it’s suspected to be a college prank, and in those first few minutes we’re subjected to some of the film’s most unsettling scenes.