This atmospheric silent thriller tells the tale of a mysterious young man who moves into a London boardinghouse at the time where a killer known as The Avenger begins terrorizing the city, preying on blonde women. The film is based on the 1913 novel The Lodger by Marie Belloc Lowndes and the play Who Is He? co-written by Belloc Lowndes, inspired by the Jack the Ripper murders. Watch for Hitchcock’s first cameos as an extra in the newsroom and standing in the crowd during an arrest.