Three students spend their holidays at the seaside where they are mistaken for Koreans, a minority which is looked down on in Japan. The action develops into a crime story.
Not being a lifelong Wagner devotee, I'm not sure if this particular performance has been released before or not, but I do know that it was included in a 2013 9-title release of Wagner operas recorded live from The Met from 1937 through 1954.
Why this performance? 3 words: Flagstad, Melchior, Huehn. I would add to that Leinsdorf, especially since the recording quality is so bad; his faster-than-the-norm tempi help cut through the densely muddy sound quality.