Samuel, a homeless fellow had took his way to London. There, he met Toby Musgrave who offered him to stay in his Inn. There, he shared his room with Jack, and became friends eversince. Soon he found an extraordinary truth about the world, which the demons were about to take over the human world, and only the demon hunters could stop them. Toby's Inn was actually full of demon hunters and Samuel was chosen to be a demon hunter by Toby, and hunt them along with his roommate Jack. On his journey, he had got vague memories of his parents, and found out an incredible truth.