XRW-846 - 媚薬幻覚レ●プ

I was drawn to the title and bought the video, but in the end, I didn't really get it. Was it a hallucination? Tentacles appeared on two of the four people, but because it was a compilation, the story was so disjointed that I couldn't understand what was happening. It was fine as a simple hardcore rape film, so if there's an original version, I'd like to watch that instead.