A brilliant but ethically compromised pathologist driven by paternal love. Ryu Seung-beom
While Lee is in custody, he reveals a chilling secondary plot: he has kidnapped Kang's daughter. To save her, Kang is blackmailed into tampering with forensic evidence to ensure Lee’s release within three days.
The film highlights the moral disintegration of a man of science when his logic is confronted by a personal crisis. Production and Reception No Mercy (2010) - IMDb
The film's success is largely attributed to the intense performances of its leads, which were praised by reviewers from IMDb and Korean Film Council . Role Description Sul Kyung-gu