Bamboo House of Dolls - HK - (1973)

http://www.imdb.com/title/tt0071189/

Women In Prison, Shaw Brothers version.
As many Shaw Brothers imitations (like the Tokusatsu imitation "Inframan"-1975), it's not very good as a WIP movie in itself but it's sleazy enough to entertain the sleaziest of us...
What do we want from a WIP movie ? Half-naked chicks fighting, sexual abuses by war criminals, sadistic lesbian warden, monochromic torture sequence and a shower scene...All checked !