A thin line exists between reality and the paranormal, between one country and the next. Lucia grew up stuck between cultures on the border of Texas and Mexico and the wavy lines of reality. With the help of her two sisters, she runs the family ranch, or what's left of it. Years ago, a hurricane shifted the river, cutting through the property with their land partially ending up on the other side of the Rio Grande. Mother Nature unleashed more than land wars. Legend tells of a supernatural beast slaughtering the livestock every seven years. When the carcasses of goats show up drained of blood, she reaches out for help. Shaw McDiamond doesn't want to be stuck in a hick town chasing after the myth of the chupacabra. As part of an elite force of paranormal agents that work the border, Shaw's group, SLICE, exposes aliens of another kind. This vampiric creature is like nothing he's encountered, and the woman he's working with unnerves him even more. Lucia and Shaw clash over folklore and reality, fate and free will. As the killings escalate with the attack of a ranch hand, the storm returns, and the two become trapped in an ever-shifting world they can't control. And to survive, they'll have to do it together.