In the film (as well as its two predecessors), Marins exploited Brazil's then loosening restrictions on nudity in film in order to produce an alternate sort of pornography which presents physical sexuality with bizarre and often repulsive imagery, generally depicting characters which are carrying out some type of test, contest, or experiment.
The plot of the film centers on a female sexologist who wishes to finance and produce a pornographic film. As the film progresses it is revealed that the doctor may have an ulterior goal in coaxing her actors into their drugged and sexually frenzied states. Ultimately the doctor persuades a man to dress in an ox costume and penetrate her vaginally while she is naked inside a wooden cow.[1]
