A Georges Simenon novel was the source for the Anglo-American The Man Who Watched Trains Go By. Claude Rains stars as Kees Popinga, chief clerk for a Dutch trading company. Scrupulously honest, Popinga goes off the deep end when he discovers that his employer has been cooking the books to support a mistress. Upon learning that his boss intends to abscond from Brussels to Paris with company funds, Popinga prevents this from happening by stealing the money himself. Through a series of wild coincidences, he winds up entangled ...