Monsieur La Souris is a 1942 French mystery crime film directed by Georges Lacombe and starring Raimu, Aimé Clariond and Micheline Francey.

[1] [2] It is based on the 1938 novel of the same title by Georges Simenon.

[3] The film's sets were designed by the art director Jacques Krauss.

The novel was later adapted into the 1950 British film Midnight Episode.

This article related to a French film of the 1940s is a stub.