Sang-hyun (Song Kang-ho) is a Christian priest who, in order to help find a cure, volunteers to be infected with a terrible virus that's devastating Africa.
Miraculously, he survives the deadly disease. However, he's left with an intense craving for both blood and sex; as well as developing some extraordinary supernatural powers.
His priestly role as a hospital visitor enables him to quell his thirst for blood without killing his 'donors', or destroying his still-intact Christian ethics. And an intense affair with unhappily married Tae-ju (Kim Ok-vin) provides him with a sexual outlet.
But it also results in her becoming a vampire who, unlike the priest, fully embraces her new, murderous urges. And, as the relationship between the two develops, Sang-hyun is left struggling to hang on to his old morality.
One thing's for sure, Émile Zola couldn¿t possibly have imagined that his 1867 novel Thérèse Raquin would ever be reinterpreted in quite such a visceral manner.
In Korean with English subtitles.