Three friends out to disprove cannibalism meet two men on the run who tortured and enslaved a cannibal tribe to find emeralds, and now the tribe is out for revenge.
This movie contains 12 potentially triggering events.
Details would be just as triggering to read for some people, so I won't do that... but this film (and the entire mondo/cannibal genre it occupies) is well-known for its relentless gore and graphic realism/intensity. Lots of it.