Kidnapped and shipwrecked on a tropic isle, the Lady Susanna finds that paradise comes complete with the willing and most intimate worship of the natives, who appoint her as their goddess of love and fertility. When the island paradise is invaded by devils in the form of a priestly slave-trader and his crew, Susanna is forced to protect the people who consider her their goddess, rather than to succumb to the evil brought by her own countrymen.