Guinea Pig: Devil's Experiment (1985)
Original title: ギニーピッグ 悪魔の実験
Guinea Pig: Devil's Experiment is a 1985 Japanese-language horror movie directed by Satoru Ogura, with a running time of 43m. It stars Shigeru Saiki and Mari Somei.
Masked thugs torture an innocent woman in increasingly brutal ways.