Inspector Grey

Inspector Grey is a 1936 French crime film directed by Maurice de Canonge and starring Maurice Lagrenée, Jean Brochard and Colette Broïdo. The film's sets were designed by the art director Émile Duquesne. It was based on a novel by Alfred Gragnon. It was followed by three sequels beginning with L'Empreinte rouge in 1937.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.