Nerdy office worker Min (Samuel Leung) gets his kicks taking sneaky snaps of his female co-workers, spying on his neighbours having rough sex, and coating himself in oil before bashing one out to internet porn; things change, however, when he mixes ingredients from his late grandfather's medicine shop to create the ultimate aphrodisiac/date-rape drug, which he uses to satisfy both his sexual urges and his desire for revenge on office bullies Winnie and Peter.
Naked Poison might not be as mean-spirited or as gory as some better-known Cat III classics, but it sure is sexy as hell, featuring a fine selection of top-quality Asian crumpet all gagging for a shagging: there's the sexy wife of Min's cruel neighbour, who goes gaga for the skinny runt after he spikes her soup; horny bitch Winnie (Sophie Ngan), who is screwing the boss for cash, but who does Min for free when he slips her his potion; and Ling (Gwennie Tam), the stunning babe who Min somehow gets to have sex with him WITHOUT the use of his wonder drug!!!
Towards the end of the film, director Man Kei Chin turns up the WTF factor slightly, with Min going psycho on Ling after she discovers his secret stash of up-skirt photos, and revealing that he has kept one of his victims chained up under his bed for emergencies; Min's granny also proves to be every bit as mad as her grandson (but is given a fatal bite by a rubber tarantula), and there's the introduction of a cop who is very camp for no other reason than to provide a few giggles.
While Naked Poison isn't all that exceptional as Cat III fare goes, it passes the time nicely enough, and earns itself a very reasonable rating of 7/10 just for giving us the gorgeous Gwennie Tam in the altogether.