This is a strange film to call a mondo film. Seems to be a better name for it would have been Hidden Camera T&A, or maybe Mondo Nude-o. The entire film seems to be faked. They supposedly travel around the world, but models on a supposedly call girl billboard in London are recognized as American models from New York. A girl who supposedly lived in London all her life, has no English accent at all! If that was true, it would be AMAZING, sadly I think they were just BSing us.
Basically what you have here is scene after scene of girls finding reasons to take off their clothes and show the viewer some T&A. A man who uses nude girls to paint on. Men who go to private clubs to leer at strippers, call girls lesbians who will get naked and let men watch them make out. Tijuana, where poverty, slave trading and nudity go hand in hand. There are no genuine strange customs or rituals. (well unless you consider obvious fake satanic cults who get nude a ritual) There certainly is no animal mutilation (can you make a mondo film without animal mutilation!?) This comes off as an attempt to cash in on the Mondo craze and show some skin, lots of skin.
It's all pretty slow moving and tame by todays standards I suppose. Obviously completely bogus, the film is nicely shot and there are an awful lot of naked girlies to keep you entertained, so I suppose it's not a total waste. Still not what I'd consider required viewing, not even sure I'd consider it a mondo film.