In the middle of the night, a horrendous murder takes place in a public washroom. Major Crimes detective Dong-geun finds a crumpled up note inside the victim’s mouth. The note contains a date from 11 years ago, and as he digs deeper into the note, he finds out that the victim was a bully in the military, and Dong-geun gets a chance to reflect on his own unsavory past that he has forgotten until now.

Joon-seok is sent to prison for his involvement in Dong-soo's death. He meets Dong-soo's son in prison, keeps his identity a secret, and agrees to join forces when he is released. All of their plans fall apart when Sung-hoon finds out the truth.

May, 1980. Man-seob is a taxi driver in Seoul who lives from hand to mouth, raising his young daughter alone. One day, he hears that there is a foreigner who will pay big money for a drive down to Gwangju city. Not knowing that he’s a German journalist with a hidden agenda, Man-seob takes the job.

After people in his town start turning up dead, a grumpy landlord is visited by a man who recounts an unsolved serial murder case from 30 years ago that may hold the clue to what is happening now.

A serial killer is caught for his seventh murder. A cop tries to solve the first six cases with the killer's help, but starts to suspect that he has ulterior motives. Based on a true story.

A soldier and his team battle hordes of post-apocalyptic zombies in the wastelands of the Korean Peninsula.