One of my major pet peeves with Jekyll & Hyde adaptations is that they always give Hyde the Hulk-treatment by turning him into this large, monstrous creature when in the book he actually becomes smaller and younger after his transformation?! No, for real, he SHRINKS. And he's not exactly monstrous or ugly; his vibes are just rotten. People tend to describe an encounter with him as "I cannot put my finger on it but something was just OFF about this guy." Vibe check failed. Imagine this mellow, middle-aged, dad-bod gentleman suddenly turning into a nasty frat boy who just automatically evokes a flight-or-fight response in you. Like, you just take one look and instinctively go "Ew, he looks like a terrifying asshole, I want to deck him in the face." That's Edward Hyde.