Deviations From The Novel
The story of Nosferatu is similar to that of Dracula and retains the core characters—Jonathan and Mina Harker, the Count, etc.—but omits many of the secondary players, such as Arthur and Quincey, and changes all of the characters' names (although in some recent releases of this film, which is now in the public domain in the United States but not in most European countries, the written dialogue screens have been changed to use the Dracula versions of the names). The setting has been transferred from Britain in the 1890s to Germany in 1838.
In contrast to Dracula, Orlok does not create other vampires, but kills his victims, causing the townfolk to blame the plague, which ravages the city. Also, Orlok must sleep by day, as sunlight would kill him, while the original Dracula is only weakened by sunlight. The ending is also substantially different from that of Dracula. The count is ultimately destroyed at sunrise when the "Mina" character sacrifices herself to him. The town called "Wisborg" in the film is in fact a mix of Wismar and Lübeck.
Read more about this topic: Nosferatu