As humans turn into savage monsters and the world plunges into terror, a handful of survivors fight for their lives — and to hold on to their humanity.

A group of supernatural demon hunters known as "Counters," each with unique abilities, disguise themselves as employees of a noodle restaurant, while tracking down evil spirits that terrorize the mortal world.

Jin-seok, 21-year-old, moves into a new house with his family. He suffers from a slight schizophrenia but he carries an ordinary life under the warm care of the family. His older brother Yu-seok is a decent college student, a mentor, and role model for Jin-seok. One night, his beloved brother is kidnapped by unidentified assailants before Jin-seok's eye. Jin-seok can’t recognize their faces, but can remember only the VIN that matches with no car. After long silence of 19 days, suddenly Yu-seok returns home, but remembers nothing which had happened in the meantime. And soon Jin-seok feels Yu-seok is a total stranger.

A team of expert mountain rangers put their lives on the line to save stranded trekkers, solve haunting mysteries and protect Jirisan National Park.

After losing their grandmother’s precious shoes, Su-min and her younger brother Dong-min accidentally fall into the netherworld where they encounter a mischievous band of kokdu, the mysterious guardians of the afterlife.