This is one of the more bizarre entries in the Emanuelle series,
playing more like a sex-themed giallo. Emanuelle (Lindt) is out to
avenge her sister (Gori), who committed suicide after escaping from her
sadistic lover Carlo (Eastman). So she chains him up in her basement,
drugs him, and forces him to watch her having sex. Carlo starts
hallucinating all kinds of bloody horrors and cannibalistic doings, so
he decides he has to break free and kill Emanuelle.