"A Dirty Job" is a novel by Christopher Moore that follows the life of Charlie Asher, a beta male who unexpectedly becomes a grim reaper after the death of his father. As he navigates his new responsibilities, Charlie discovers a world filled with supernatural beings and dark humor, all while trying to protect his family and friends. The story blends elements of fantasy and comedy, showcasing Charlie's struggles with his new role and the bizarre situations he encounters. The novel explores themes of life, death, and the importance of embracing one's responsibilities, all wrapped in Moore's signature wit.