It starts with a wet toothbrush that isn't his. Then a message on a fogged mirror that drips upward. When Leo Vance seeks help from a priest, he witnesses the holy man contort into an impossible, living nightmare before vanishing. Now, hunted by beings with twisted limbs and knowing smiles, Leo is on the run from an ancient entity that collects souls like souvenirs. He is marked, the water is its vessel, and they are all waiting for him.