'Monster Cop' Ma Seok-do investigates an illegal online gambling business led by a former STS Baek and an IT genius CEO Chang. Ma proposes an unexpected alliance to Jang and begins hunting down the criminals.
The Roundup: Punishment is a 2024 South Korean action crime film directed by Heo Myung-haeng and stars Ma Dong-seok, Kim Mu-yeol, Park Ji-hwan and Lee Dong-hwi. It is the fourth installment of The Roundup series. The film is based on the November 2015 Pattaya murder case of Thailand in which South Koreans in Thailand kidnapped, imprisoned and exploited computer programmers to operate an illegal gambling website.