Reverend Montague Summers, an English writer and expert on the Gothic novel, Catholic cleric and researcher of the occult, author of works on the history of witchcraft and demonology, on the geography of witchcraft, werewolves and vampirism, in his book traces the dark legends about vampires to the origins of their origins. In search of a clear interpretation of the characteristics and actions of vampires, an attempt to formulate a hypothesis that could explain these terrible phenomena, Summers gives many examples and cases of vampirism. Based on eyewitness accounts, he talks about the habits, characteristics, appearance and distinctive features of vampires and methods of protection against them.