Even though I swore to myself I would never lay eyes again on 'Men behind the Sun' or any of its sequels, I am now reviewing part 2. Go figure! I guess the call of the extremes just was too irresistible. At least now I clearly recall why I took this pledge. These films are almost unbearable. The 'Men behind the Sun' franchise might as well be the most controversial and shocking series of films ever made (maybe a tie with the 'Guinea Pig' series, though) and handles about despicably explicit experiments performed on prisoners in a Japanese army base during WWII. These unfriendly Japs are developing germ-bombs to disable their enemies and a whole lot of other sick stuff involving nitroglycerine etc There's an ultra-thin wraparound story about a young soldier who's sent to serve in the camp against his will but that's of minor importance. This second chapter is less repulsive than the original, but still contains more than enough sequences to make your stomach turn. Luckily the make-up effects are often cheesy and unquestionably fake. The acting is weak and the directing (by Hong Kong B-movie legend Ho) is atrocious. This is a film without any values. The only reason why it is made is because the DVD looks good in a cult-collection like mine.