No Mercy (2010)
No Mercy (Korean: 용서는 없다; RR: Yongseoneun Eupda) is a 2010 South Korean suspense-thriller film directed by Kim Hyung-Jun. The film stars Sul Kyung-Gu as a forensic expert and Ryoo Seung-Bum as an environmentalist caught in a complex web of mystery and vengeance.

Plot
The story follows Kang Min-ho (Sul Kyung-Gu), a distinguished forensic scientist at the National Institute of Scientific Investigation (NISI). His professional life becomes deeply entangled with a series of gruesome murders involving decapitated victims. As he investigates the case, he encounters Lee Sung-ho (Ryoo Seung-Bum), an environmentalist who possesses critical information regarding the killer's identity and motives.

Production
The film was produced by Cinema Service and The Dream Pictures. Principal photography commenced on June 17, 2009, with a scheduled four-month production period. Filming concluded on September 18, 2009, at Cheongju International Airport in South Korea. The final scene filmed depicted Kang Min-ho awaiting the arrival of his daughter, who was returning to South Korea after completing her studies in the United States.

Cast
- Sul Kyung-Gu as Kang Min-ho
- Ryoo Seung-Bum as Lee Sung-ho
- Han Hye-Jin as Min Seo-young
- Sung Ji-Ru as Yun Jong-kang
- Nam Kyeong-Eup as Chief Detective Oh



Reception
The film was released in South Korea on January 7, 2010. In 2011, the film received the Silver Medal for Cinematography at the 33rd Golden Cinematography Awards.
