This film is not for the faint of heart. It is widely regarded as one of the best revenge thrillers ever made.
: Available in select regions; however, audio is generally limited to Korean with English subtitles. Prime Video
: Be cautious of videos split into multiple "HD Parts" as they often contain significant cuts to bypass copyright filters. Dailymotion 3. Indian "Unofficial Remake"
If you are looking for a similar story in Hindi, the 2014 film Ek Villain