The all-female queendom of Femina, under the rule of Sumitra (Shirley Eaton), wants to conquer the world. Jeff (Richard Wyler) has arrived in Rio with $10 million. The gangster Sir Masius (George Sanders), whose men drive around incognito in gaudy hearses, is after his money though his hoods are pretty useless in a fight. Sumitra also wants the cash as well and captures Jeff. Jeff is take to Femina and ends up in a glass cell along with Ulla (Marta Reeve) being tortured. We discover that Jeff is really here to rescue her. Though, he seems to pick up quite a harem along the way.
It's terrible campy nonsense really, but looks pretty funky. Sumitra's fortress is a concrete Brutalist marvel. Her tortures involve many strange early electronic noises. Her army of females are (of course) fairly scantily dressed. Well it was 1969, who needed acid when films like this were around?