IMDB.com is equipped with a feature that allows users to search for movies or TV shows by plot keywords. All movies on IMDB are labeled by keyword, allowing users to search for them.
To search by plot keywords on IMDB, open the home page then click the drop-down bar to the right of the white text box that says "Find Movies, TV shows, Celebrities and more...". "Keywords" is the sixth option down, below "All," "Titles," "TV Episodes," "Names" and "Companies." Once "Keywords" has been selected, type the desired keyword into the white text box. Click the magnifying glass to the right of the drop-down box. IMDB will then generate a list of movies, sorted by popularity, that matches the searched keyword.