The Lodger: A Story of the London Fog is a 1927 silent film directed by Alfred Hitchcock. The film is based on the book The Lodger by Marie Belloc Lowndes, which was loosely based on the Jack the Ripper murders. The story takes place in London during a period when a serial killer is targeting blonde women. A young woman named Daisy lives with her parents, who are running a boarding house. One night, a mysterious man named Mr. Slade becomes a lodger at the house. The landlady becomes suspicious of Mr. Slade and begins to suspect that he may be the serial killer. She enlists the help of her policeman boyfriend to investigate the lodger and to catch the killer. The film is notable for its innovative use of camera angles, lighting, and suspenseful storytelling. It is considered to be one of Hitchcock's early masterpieces and has had a lasting influence on the horror and thriller genres.