Robert Louis Stevenson wrote Strange Case of Dr Jekyll and Mr Hyde in 1886, and over a hundred years later, the tale is known by pretty much everyone, or is it? The story that most people know might very well not come from Stevenson, but one of the hundreds of adaptations that have sprung up over the years. By doing a close reading of the novella, we get a basis on which we can examine some of the many visual adaptations, asking questions like what does Hyde actually look like? What was Jekyll's motivation for creating the formula? And what is the nature of Jekyll/Hyde's coexistence? Have the many films, comic books and TV-shows taken a page out of Stevenson's book, or has the story changed over the years?