SPOILER ALERT!
I have been on a Sherlock Holmes spree for the past couple of weeks. I have watched probably 10 movies and am in the process of reading every story that Sir Arthur Conan Doyle ever wrote about Holmes. While Holmes (almost) always solves his case, the stories never seem to grow monotonous. Sir Arthur Conan Doyle seems to have had a nearly infinite capacity for imagining new crimes and scenarios for the stories. He tried to kill off Holmes in "The Final Problem", since he believed that detective stories were taking up too much of his imagination and time, but all of the readers of his stories revolted and Sherlock Holmes returned to the Strand magazine. I recommend any of these stories to anyone interested in mysteries.