Having watched the musical multiple times before, I was surprised to find out that it was based on a novel! I enjoyed the mystery, intrigue, and hysteria, which seemed more pronounced in the novel than any adaptations I've watched. If you get a chance to listen to an audiobook version, I would highly recommend it - I found a narrator on YouTube and he amplified the obsessive and chaotic tone of the novel. I'm not usually into any form of creepy or horror (I'm sure this novel is minimal compared to most) but I did appreciate this one!