I can't imagine this wasn't hugely scandalous when it came out. Symbolic serpentine fellatio, lots of underwear (nudity would likely have gotten this banned), drug use, and rape are just a few of the taboos here. It turns an otherwise okay film into a fairly decent one at times, with a few obvious exceptions. It also makes Hyde interestingly unlikable; some adaptations make him sympathetic in some ways. Not here. In the novel, he's practically soulless, but also otherwise unpleasant. Here, he's soulless but charming, a seductive sort of villain; you can see why those not in the know might like him.
October count: 18/31
Hammer horror count: 17/31