Chan-wook Park directs this blood-soaked Korean vampire drama starring Kang-ho Song as Sang-Hyeon, a devoted small-town priest who selflessly volunteers to take part in a medical experiment intended to develop a vaccine that will help eradicate a deadly virus. But the experiment fails and he is given a blood transfusion that turns him into a vampire. Losing the struggle against his newfound desire for blood and carnality, Sang-Hyeon soon finds himself sucked into a vortex of depravity as he embarks on a passionate affair with Tae-ju (Ok-vin Kim), the wife of a childhood friend, and indulges himself in a dark new world of sin and sensual pleasure.