The Executioner (2009)

Synopsis:
Jae-gyeong had no idea what he was getting into when he became a prison guard. Iron-fisted guard Jong-ho takes the naive young rookie under his wings, and teaches him how to keep the inmates in check in this tough world. While other guards have softer stances, Jong-ho regards his prisoners with open loathing, and as time passes Jae-gyeong hardens his heart as well. When the government decides to resume capital punishment, Jong-ho and Jae-gyeong are among the guards selected for execution duty.
Watch