Written by Sheridan Le Fanu in the 19th century, 'The Evil Guest' explores the dark undercurrents of a decaying English estate and the moral corruption lurking within its walls. The story centers on the mysterious arrival of Sir Wynston Berkley at Gray Forest, the gloomy mansion of his estranged cousin Richard Marston, and the unsettling entanglement between the wealthy baronet, the beautiful French governess Mademoiselle de Barras, and Marston's increasingly troubled household. Le Fanu masterfully builds an atmosphere of suspicion and psychological unease as hidden secrets begin to surface and dangerous deceptions come to light.