Frankenstein by Mary Shelley (1818)
A ship rescues a man drifting on ice in the Arctic. The captain writes home to his sister to tell her the strange tale of the man named Frankenstein. Frankenstein claims that he gave life to a horrible manlike monster who killed several of his family members because he refused to make a mate to the monster.
I have spent my whole life believing that the monster was named Frankenstein and now I know the truth. It took me forever to read the book, probably because I didn't find the narrative of Frankenstein interesting at all until the first murder happened. And I finally started to enjoy the story when the monster started to speak. His story was far more interesting than Frankenstein's, although I must question the way he learnt to read and write without being discovered, considering his size and all. Frankenstein certainly didn't get any sympathy from me, but neither did the monster.
I haven't seen any film adaptions of Frankenstein yet, and I doubt I will ever dare to do it on my own either as I imagine them being scarier than the book.