Based on a story by Kyo Takigawa, the 65-minute crime flick Intimidation (1960) is often referred to as the first Japanese film noir, but the very same director, Koreyoshi Kurahara, made a noir film titled I Am Waiting three years prior so we can safely say that this isn't the case. So, while Intimidation might not have big historical importance in the film world, it's a fine film on its own.
Despite its short running time, the film is heavy on character backstories and there really are no wasted moments - every scene is here for a reason. It's a pocket noir tale which intermingles the situations faced by a corrupt bank manager blackmailed to rob his own bank and his timid underling (played by Ko Nishimura, a face probably familiar to you if you've seen a few old Japanese films) who got screwed over by the manager in terms of career and family life. There are twists and turns at every corner, and I also really like the bank robbery scene, conducted in absolute silence. Also, where can I get one of those floral clocks?