Dark Hole

In pursuit of her husband’s killer, Detective Lee Hwa Sun ( Kim Ok Bin ) heads to the city of Mooji. A dark hole is found in the forest, emitting a strange black smoke. People who breath in the smoke are transformed into monsters. However, there are few among the inhabitants of the city who are not affected by it. Former police officer Yoo Tae Hwan ( Lee Joon Hyuk ) is one of them. Hwa Song and Tae Hwan team up to find out why and save the few who have not yet become a monster.