I Saw the Devil
Kyung-chul is a dangerous psychopath who kills for pleasure. He has committed infernal serial murders in diabolic ways that one cannot even imagine and his victims range from young women to even children. The police have chased him for a long time, but were unable to catch him. One day, Joo-yeon, daughter of a retired police chief becomes his prey ...
Sang-hyun, a respected priest, volunteers for an experimental procedure that may lead to a cure for a deadly virus. He gets infected and dies, but a blood transfusion of unknown origin brings him back to life as a vampire. Now, Sang-hyun is torn between faith and bloodlust, and has a newfound desire for Tae-ju, the wife of his childhood friend.
With no clue how he came to be imprisoned, drugged and tortured for 15 years, a desperate businessman seeks revenge on his captors.