If you're looking for a historically-accurate film that describes Unit 731 and the atrocities they unleashed upon the World (look them up, you won't thank me for it) then you won't find it here. This film and the similar "Men Behind The Sun" (same subject) are both exploitation films, pure and simple, using the ghoulish subject matter in order to show young people being sliced, diced and generally experimented upon. "Schindler's List" it aint, thank God.
Andrey Iskarov (check out his "Visions of Suffering") shows black-and-white footage of young Russian lovelies being torn to pieces in as many ways as his imagination can vomit up, interspersed with documentary footage and rather pointless interviews with "eye witnesses" - none of whom actually spent time within the Unit - and hilarious narration by a Brummie professor courtesy of being recorded in Birmingham. None of the above is truly shocking though, compared to the fact that the film is nigh-on FOUR HOURS long, which makes it a mammoth task to sit through without making you crave a good lobotomy. Took me two days.
Still, Unearthed Films are fast becoming the greatest indie DVD label on the blogosphere, with lovingly-packaged films smothered with extras and the like. If you are a true gore hound, you'll probably lap this up. Torture yourself and your historical insensitivity later.