You can look for this specific file on the following subtitle download platforms :

: Highly recommended for its clean interface and ability to search for exact release tags like "PiGNUS".

Searching for subtitles for the specific release of The Unholy (2021) can be done through several reliable community databases. Because this is a BDRip (Blu-ray Rip), it likely follows standard theatrical timing, but using a site that allows you to filter by release name ensures the text syncs perfectly with your video file.

: One of the largest repositories; you can often find matching hashes for specific rips here.

: A modern alternative that frequently carries major 2021 horror releases.

: A focused site if you only need the English version for this specific film.

If you download a subtitle that is slightly off, most media players like VLC allow you to adjust the delay by pressing 'H' (to delay) or 'G' (to speed up) while the movie is playing.