One day Dr.Watson received two letters ,the first one is from their old client and second one was of Vampire!!!! A person named Mr. Ferguson is suspecting his wife to be a vampire.He stated that he has seen his wife to eat blood from his little baby boy's neck...He was very frightened and astonished so wants help of Mr. Sherlock Holmes Will Sherlock help him?Will he take the case or just ignore it?And What about the vampire??Is there really any vampire?If yes,then whats the matter?