The Stealth Sex Fiend (2003)
aka Yînxíng yínmó: Yông qín guì lì shuâng chái
Genre: Fantasy | Erotic | CAT. III
Country: Hong Kong | Director: Carlos
Language: Cantonese | Subtitles: English (Optional, embedded in Mkv file)
Aspect ratio: 1.33:1 | Length: 84mn
Dvdrip H264 Mkv – 768×576 – 29.970fps – 1.11gb
http://www.imdb.com/title/tt3443476/
A guy discovers a magic potion which makes him invisible, and then you know…
I think our very own Adam Rifkin once made a film along these lines, but possibly weirder.