Really lame Faces Of Death wannabe. Jungle natives performing open-skull surgery is the "highlight" here, supplemented by footage of animals attacking other animals and people follow, in scenes culled from several other European horror flicks, and from decades-old newsreels.
It looks like someone put this together in his living room one night, using nothing more than two VCRs and a handful of old, obscure (at that time) movies on video, and a bit of beer. Most footage presented here is high generation,, probably third or fourth generation at least, so its crummy, degenerating audio and picture quality don't help matters, either.
The fact that it just isn't very competent, coherent, or interesting also doesn't help.