The movie "The Chaser" is a South Korean thriller film released in 2008. The story revolves around a former detective who becomes a taxi driver and starts chasing a serial killer who has been targeting young women.
If you're looking for a specific source to watch "The Chaser" with English subtitles, I recommend checking out online marketplaces or streaming services that offer the movie.
The movie is widely available on DVD and Blu-ray, and can also be streamed or rented on various online platforms.