An "Index of" directory is essentially a list of files and folders on a web server. Webmasters usually hide these directories to prevent unauthorized downloading. However, when misconfigured, a server displays an "Index of /" page, showing every movie file (MP4, AVI, MKV) inside that folder.
Numbness by Design: Unpacking ‘The Index of Love and Other Drugs’ (2021) index of love and other drugs 2021