Joseph Thomas Sheridan Le Fanu (1814 —1873) was an Irish writer of Gothic novels, one of the most influential ghost story writers of the nineteenth century. Filled with mystery, "The Evil Guest" is a murder story set in Victorianera England. It tells a story of Richard Marston, who lives in poverty with his family. His house slowly decays, and moral principles fade away. This decline reaches its critical point when inhabitants of the mansion find Marston's rich cousin dead in one of the rooms. But who committed the murder?