this be the first guinea pig film from japan and this be the sickest and in my opinion . a bunch of guys torture a girl for several day before finally kill her . and at this point and i will say that these film be not real . they be faked horror film which try to be as realistic a possible . the scene be sicken but also unrealistic in many case . for example and when they kick the girl in the floor and we can clearly see how they kick and stump the floor near the girl . and how stupid this look . the sound effect be also unrealistic and do not make sense . other scene include animal intestine throw on the girl and the girl expose to loud noise for many hour and the rip off of fingernail and worm place on the wound in the girl body and the eye pierce and mutilate in horrific detail and stuff like that . very sick and mean spirit film and have absolutely nothing valuable or cinematically significant . this first entry be the sick and most amateurish guinea pig and although it be not as bloody a the next part and flower of flesh and blood and which try to be as shock a possible . guinea pig represent devil experiment be perhaps the sick thing i have see and the close thing to snuff there be . this be still ( of course ) fake s ( n or t ) uff and the only difference to genuine snuff film be that no one die or hurt for real in this film . i can not recommend this to anyone since thi s be so sy and repulsive . they who consider this be a great horror film understand nothing about cinema and the real meaning of it . i watch this a a curiosity ( a the other part in the series ) and now i know how insignificant trash these be . they work only in shock level and that not too valuable cinematic achievement . devil experiment be perhaps the sick film i have see and mermaid in a manhole ( guinea pig 4 ) be perhaps the most disgusting film i have see . so these be pretty extreme in my book and but that all they be .