AllMovie

A young Japanese woman in search of her missing mother discovers a sinister secret deep within the Sacred Heart Convent in director Noribumi Suzuki's notorious nun-exploitation classic. After taking religious vows to gain entry into the convent where her mother was last seen, Yumi Takigawa descends into a hedonistic world where sinful archbishops and whip-wielding nuns torment her in the most unholy manner imaginable.