Oh to be in Yokohama in 1933...I was amazed by Shimizu's cinematography in this movie, with his respect to landscape, cityscape, and architecture, both exterior and interior. Highly recommended.
With a story such as this, I can almost believe this movie could be remade today with the modern day equivalent: the threat of a small nuclear device, a "dirty bomb," being detonated.
This film is included in the Criterion Collection "Late Spring" (#331) double-disc set.