Did you know
Tight 79-minute runtime — shorter than most television pilots.

A woman joins a convent to investigate the suspicious death of her brother but nothing could prepare her for the horror and depravity that takes place behind the convent walls.
“Some stories are better left unspoiled.”

Michiyo Yasuda

Sanae Nakahara
Shigako Shimegi

Machiko Hasegawa

Yoshihiko Aoyama
Naomi Kobayashi
Yasuyo Matsumura
Mitsuko Tanaka
Credits
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Did you know?
Cinephile deep dive
Tokuzō Tanaka directs. Runs lean at under 100 minutes. Produced in Japan. Dialogue in Japanese.
Trivia
Part of
From 1968 to 1969, Daiei released a series of low-budget exploitation films, which it named the "Ero Guro/Unique Historical Drama" Line". This consisted of two series: the "Woman's Secret" series and the "Kanto Woman" series. Later, after their merger with Nikkatsu in 1970, two more films were released in the series.
Also by
Production companies

Daiei Film
JP
Release history · US