The Thirteenth Guest is a 1932 American Pre-Code mystery film, released on August 9, 1932. The film is also known as Lady Beware in the United Kingdom. It is based on the 1929 novel by crime fiction writer Armitage Trail best known for writing the novel Scarface, on which the 1932 movie was based. The novel was again brought to the silver in screen in 1943 as Mystery of the 13th Guest.