Sandakan No. 8
A young journalist interviews an elderly woman about being forced into prostitution in Borneo at a brothel called Sandakan No. 8. Directed by Kei Kumai.
Starring Komaki Kurihara, Yoko Takahashi, Kinuyo Tanaka, Ken Tanaka, Masayo Umezawa, Takiko Mizunoe, Eiko Mizuhara, Yoko Todo, Yoko Nakagawa, Eitarō Ozawa
Watch "Sandakan No. 8" on Criterion Channel released in 1974. It's a drama and history movie, and has a rating of 7.5 out of 10 from Imdb which is usually fine for this kind of movie.