en Cuevana 3. An erotic horror movie dedicated to Joe D Amato, Hyde's Secret Nightmare combines the two genres and mixes them in equal parts. Cross-cut erotic and horror scenes are kept together by a thread of dramatic force bordering on obsession, paranoia, phobia, perversion, and lack of self-acceptance. Everything unfolds in an extreme world where sex seems the only way to attain a state of well-being.