Reviews: From a review by Glenn Erickson on Trailers from Hell site: "Bookkeeper Kees Popinga (Claude Rains) lives in an orderly world in Groningen, Holland, keeping the books of the De Koster shipping company. He takes his family for granted and finds simple pleasure in his hobby of memorizing the train schedules and dreaming about all the exciting places the trains go. All of that falls apart when Kees discovers that his boss Julius de Koster (Herbert Lom) has misappropriated the firm’s money to keep a mistress in Paris. Kees’ own savings are with the company too. At a dramatic moment Kees learns that Julius intends to fake his own death and abscond with a bag containing a fortune in guilders. Events conspire to put the relatively innocent Kees on a journey of discovery, aboard a train to Paris with the aforementioned treasure bag. Along the way he comes in ‘coincidental’ contact with the French detective Lucas (Marius Goring), who was aware of de Koster’s embezzlement. Lucas doesn’t suspect Kees of a crime, but the bookkeeper flees him anyway. After enjoying the sights of the city, Kees Popinga foolishly drops in on his boss’s former lover, Michele Rozier (Märta Torén), foolishly imagining that she might be a potential new ‘friend.’ Rozier throws him out, but after learning from Lucas about the missing fortune in cash, goes on her own search for the little Dutchman. Kees is learning not to trust everybody, but will he learn fast enough?

...Because a Claude Rains character is usually the smartest person in the room, we forget that he’s got a much wider range than blasé cynicism. Kees Popinga may be inexperienced but he’s not stupid. We like him because he’s not a coward — when Michele savagely insults him, he doesn’t crawl away. He maintains his pride and composure, which the observant Lucas respects. When things go wrong, Lucas’s worst fear is that Kees will commit a real crime."