Women who have been captured and sold as slave labor to a South American emerald mine hatch a plan for revolution and revenge.

A women's prison camp is located deep in the tropical rain forest. Sadistic guards and a warden from hell make life almost unbearable for the inmates, and any infraction of the rules is dealt with swiftly and savagely. The camp doctor is horrified at what he sees happening, and drinks heavily to push the horror away. Finally the inmates have had had enough, and they enlist the help of the doctor to try and escape.

A man who has been having psychic visions of himself killing naked women soon discovers that it's not himself he's seeing, it's his Siamese twin. (yes, they've been separated) So he travels to Hamburg, where the things he's seen start to come to pass…