review
Wife of a Spy
Even if it never explicitly mentions Unit 731, that this film addresses the Imperial Japanese Kwangtung Army's biological experiments on prisoners of war--with one particular harrowing scene of (not actual historical) archive footage--is quite subversive as one released in the height of Japanese historical revisionism as state policy. This is the Godzilla-1-era of Japanese Showa Nostalgia era of cinema, after all.