Erik Dorne, a mystery novel writer, is murdered in his home. His butler, the only witness to the murder is attacked and explains to police that the murderer was a witch. The only other clue is a torn out page of the manuscript of Dorne's latest book alluding to a story about a witch. Joshua Grimm, a writer of literature about witches and demonology, and Mr. Wright, Dorne's publisher, appear at the crime scene to shed some light on why Dorne might have been murdered. Dorne's most recent book was going to reveal the identity of a witch and it is most likely that whoever was to be unmasked murdered Dorne and stole the manuscript for the book.